diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d746a062..78862da6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+
+- Added support to customize the rule thresholds in the _X-ray_ section (experimental)
+
 ### Changed
 
 - Improved the language localization for German (`de`)
diff --git a/apps/api/src/app/user/update-user-setting.dto.ts b/apps/api/src/app/user/update-user-setting.dto.ts
index 6ea6d7427..b4d3edb77 100644
--- a/apps/api/src/app/user/update-user-setting.dto.ts
+++ b/apps/api/src/app/user/update-user-setting.dto.ts
@@ -1,4 +1,5 @@
 import { IsCurrencyCode } from '@ghostfolio/api/validators/is-currency-code';
+import { PortfolioReportRule } from '@ghostfolio/common/interfaces';
 import type {
   ColorScheme,
   DateRange,
diff --git a/apps/api/src/models/rules/account-cluster-risk/current-investment.ts b/apps/api/src/models/rules/account-cluster-risk/current-investment.ts
index e25bb2f08..13680270e 100644
--- a/apps/api/src/models/rules/account-cluster-risk/current-investment.ts
+++ b/apps/api/src/models/rules/account-cluster-risk/current-investment.ts
@@ -76,11 +76,11 @@ export class AccountClusterRiskCurrentInvestment extends Rule<Settings> {
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): Settings {
+  public getSettings({ baseCurrency, xRayRules }: UserSettings): Settings {
     return {
-      baseCurrency: aUserSettings.baseCurrency,
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive,
-      thresholdMax: 0.5
+      baseCurrency,
+      isActive: xRayRules[this.getKey()].isActive,
+      thresholdMax: xRayRules[this.getKey()]?.thresholdMax ?? 0.5
     };
   }
 }
diff --git a/apps/api/src/models/rules/account-cluster-risk/single-account.ts b/apps/api/src/models/rules/account-cluster-risk/single-account.ts
index 1f61b9659..feaaf4e38 100644
--- a/apps/api/src/models/rules/account-cluster-risk/single-account.ts
+++ b/apps/api/src/models/rules/account-cluster-risk/single-account.ts
@@ -34,9 +34,9 @@ export class AccountClusterRiskSingleAccount extends Rule<RuleSettings> {
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): RuleSettings {
+  public getSettings({ xRayRules }: UserSettings): RuleSettings {
     return {
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive
+      isActive: xRayRules[this.getKey()].isActive
     };
   }
 }
diff --git a/apps/api/src/models/rules/currency-cluster-risk/base-currency-current-investment.ts b/apps/api/src/models/rules/currency-cluster-risk/base-currency-current-investment.ts
index 1258eb889..e3050efcc 100644
--- a/apps/api/src/models/rules/currency-cluster-risk/base-currency-current-investment.ts
+++ b/apps/api/src/models/rules/currency-cluster-risk/base-currency-current-investment.ts
@@ -62,10 +62,10 @@ export class CurrencyClusterRiskBaseCurrencyCurrentInvestment extends Rule<Setti
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): Settings {
+  public getSettings({ baseCurrency, xRayRules }: UserSettings): Settings {
     return {
-      baseCurrency: aUserSettings.baseCurrency,
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive
+      baseCurrency,
+      isActive: xRayRules[this.getKey()].isActive
     };
   }
 }
diff --git a/apps/api/src/models/rules/currency-cluster-risk/current-investment.ts b/apps/api/src/models/rules/currency-cluster-risk/current-investment.ts
index 5627ae254..fadf47ba5 100644
--- a/apps/api/src/models/rules/currency-cluster-risk/current-investment.ts
+++ b/apps/api/src/models/rules/currency-cluster-risk/current-investment.ts
@@ -62,11 +62,11 @@ export class CurrencyClusterRiskCurrentInvestment extends Rule<Settings> {
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): Settings {
+  public getSettings({ baseCurrency, xRayRules }: UserSettings): Settings {
     return {
-      baseCurrency: aUserSettings.baseCurrency,
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive,
-      thresholdMax: 0.5
+      baseCurrency,
+      isActive: xRayRules[this.getKey()].isActive,
+      thresholdMax: xRayRules[this.getKey()]?.thresholdMax ?? 0.5
     };
   }
 }
diff --git a/apps/api/src/models/rules/emergency-fund/emergency-fund-setup.ts b/apps/api/src/models/rules/emergency-fund/emergency-fund-setup.ts
index 0ba7a109c..c59701438 100644
--- a/apps/api/src/models/rules/emergency-fund/emergency-fund-setup.ts
+++ b/apps/api/src/models/rules/emergency-fund/emergency-fund-setup.ts
@@ -19,7 +19,7 @@ export class EmergencyFundSetup extends Rule<Settings> {
   }
 
   public evaluate(ruleSettings: Settings) {
-    if (this.emergencyFund < ruleSettings.thresholdMin) {
+    if (!this.emergencyFund) {
       return {
         evaluation: 'No emergency fund has been set up',
         value: false
@@ -32,16 +32,14 @@ export class EmergencyFundSetup extends Rule<Settings> {
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): Settings {
+  public getSettings({ baseCurrency, xRayRules }: UserSettings): Settings {
     return {
-      baseCurrency: aUserSettings.baseCurrency,
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive,
-      thresholdMin: 0
+      baseCurrency,
+      isActive: xRayRules[this.getKey()].isActive
     };
   }
 }
 
 interface Settings extends RuleSettings {
   baseCurrency: string;
-  thresholdMin: number;
 }
diff --git a/apps/api/src/models/rules/fees/fee-ratio-initial-investment.ts b/apps/api/src/models/rules/fees/fee-ratio-initial-investment.ts
index 09029fd3e..9b1961ed6 100644
--- a/apps/api/src/models/rules/fees/fee-ratio-initial-investment.ts
+++ b/apps/api/src/models/rules/fees/fee-ratio-initial-investment.ts
@@ -43,11 +43,11 @@ export class FeeRatioInitialInvestment extends Rule<Settings> {
     };
   }
 
-  public getSettings(aUserSettings: UserSettings): Settings {
+  public getSettings({ baseCurrency, xRayRules }: UserSettings): Settings {
     return {
-      baseCurrency: aUserSettings.baseCurrency,
-      isActive: aUserSettings.xRayRules[this.getKey()].isActive,
-      thresholdMax: 0.01
+      baseCurrency,
+      isActive: xRayRules[this.getKey()].isActive,
+      thresholdMax: xRayRules[this.getKey()]?.thresholdMax ?? 0.01
     };
   }
 }
diff --git a/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.component.ts b/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.component.ts
index 41ebf49db..4fb68e780 100644
--- a/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.component.ts
+++ b/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.component.ts
@@ -2,6 +2,7 @@ import { PortfolioReportRule } from '@ghostfolio/common/interfaces';
 
 import { CommonModule } from '@angular/common';
 import { Component, Inject } from '@angular/core';
+import { FormsModule } from '@angular/forms';
 import { MatButtonModule } from '@angular/material/button';
 import {
   MAT_DIALOG_DATA,
@@ -16,6 +17,7 @@ import { IRuleSettingsDialogParams } from './interfaces/interfaces';
 @Component({
   imports: [
     CommonModule,
+    FormsModule,
     MatButtonModule,
     MatDialogModule,
     MatFormFieldModule,
diff --git a/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.html b/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.html
index e24db29f7..ef86549f6 100644
--- a/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.html
+++ b/apps/client/src/app/components/rule/rule-settings-dialog/rule-settings-dialog.html
@@ -1,23 +1,37 @@
 <div mat-dialog-title>{{ data.rule.name }}</div>
 
 <div class="py-3" mat-dialog-content>
-  <mat-form-field appearance="outline" class="w-100">
+  <mat-form-field
+    appearance="outline"
+    class="w-100"
+    [ngClass]="{ 'd-none': settings.thresholdMin === undefined }"
+  >
     <mat-label i18n>Threshold Min</mat-label>
-    <input matInput name="thresholdMin" type="number" />
+    <input
+      matInput
+      name="thresholdMin"
+      type="number"
+      [(ngModel)]="settings.thresholdMin"
+    />
   </mat-form-field>
-  <mat-form-field appearance="outline" class="w-100">
+  <mat-form-field
+    appearance="outline"
+    class="w-100"
+    [ngClass]="{ 'd-none': settings.thresholdMax === undefined }"
+  >
     <mat-label i18n>Threshold Max</mat-label>
-    <input matInput name="thresholdMax" type="number" />
+    <input
+      matInput
+      name="thresholdMax"
+      type="number"
+      [(ngModel)]="settings.thresholdMax"
+    />
   </mat-form-field>
 </div>
 
 <div align="end" mat-dialog-actions>
   <button i18n mat-button (click)="dialogRef.close()">Close</button>
-  <button
-    color="primary"
-    mat-flat-button
-    (click)="dialogRef.close({ settings })"
-  >
+  <button color="primary" mat-flat-button (click)="dialogRef.close(settings)">
     <ng-container i18n>Save</ng-container>
   </button>
 </div>
diff --git a/apps/client/src/app/components/rule/rule.component.html b/apps/client/src/app/components/rule/rule.component.html
index f19436aba..5491933c0 100644
--- a/apps/client/src/app/components/rule/rule.component.html
+++ b/apps/client/src/app/components/rule/rule.component.html
@@ -62,7 +62,7 @@
             <ion-icon name="ellipsis-horizontal" />
           </button>
           <mat-menu #rulesMenu="matMenu" xPosition="before">
-            @if (rule?.isActive && !isEmpty(rule.settings) && false) {
+            @if (rule?.isActive && !isEmpty(rule.settings)) {
               <button mat-menu-item (click)="onCustomizeRule(rule)">
                 <ng-container i18n>Customize</ng-container>...
               </button>
diff --git a/apps/client/src/app/components/rule/rule.component.ts b/apps/client/src/app/components/rule/rule.component.ts
index e6aafdcb1..6e6c368f0 100644
--- a/apps/client/src/app/components/rule/rule.component.ts
+++ b/apps/client/src/app/components/rule/rule.component.ts
@@ -55,16 +55,15 @@ export class RuleComponent implements OnInit {
     dialogRef
       .afterClosed()
       .pipe(takeUntil(this.unsubscribeSubject))
-      .subscribe(
-        ({ settings }: { settings: PortfolioReportRule['settings'] }) => {
-          if (settings) {
-            console.log(settings);
-
-            // TODO
-            // this.ruleUpdated.emit(settings);
-          }
+      .subscribe((settings: PortfolioReportRule['settings']) => {
+        if (settings) {
+          this.ruleUpdated.emit({
+            xRayRules: {
+              [rule.key]: settings
+            }
+          });
         }
-      );
+      });
   }
 
   public onUpdateRule(rule: PortfolioReportRule) {
diff --git a/apps/client/src/app/pages/portfolio/fire/fire-page.component.ts b/apps/client/src/app/pages/portfolio/fire/fire-page.component.ts
index 5aca4b375..10a2eb604 100644
--- a/apps/client/src/app/pages/portfolio/fire/fire-page.component.ts
+++ b/apps/client/src/app/pages/portfolio/fire/fire-page.component.ts
@@ -134,8 +134,6 @@ export class FirePageComponent implements OnDestroy, OnInit {
   }
 
   public onRulesUpdated(event: UpdateUserSettingDto) {
-    this.isLoading = true;
-
     this.dataService
       .putUserSetting(event)
       .pipe(takeUntil(this.unsubscribeSubject))
diff --git a/libs/common/src/lib/types/x-ray-rules-settings.type.ts b/libs/common/src/lib/types/x-ray-rules-settings.type.ts
index bc2782547..a55487f0b 100644
--- a/libs/common/src/lib/types/x-ray-rules-settings.type.ts
+++ b/libs/common/src/lib/types/x-ray-rules-settings.type.ts
@@ -1,3 +1,5 @@
+import { PortfolioReportRule } from '@ghostfolio/common/interfaces';
+
 export type XRayRulesSettings = {
   AccountClusterRiskCurrentInvestment?: RuleSettings;
   AccountClusterRiskSingleAccount?: RuleSettings;
@@ -7,6 +9,6 @@ export type XRayRulesSettings = {
   FeeRatioInitialInvestment?: RuleSettings;
 };
 
-interface RuleSettings {
+interface RuleSettings extends Pick<PortfolioReportRule, 'settings'> {
   isActive: boolean;
 }