Add ability to let players who own a document edit the attributes for it via the UI

module/apps/PlayerSheet.mjs

@@ -18,16 +18,6 @@ export class PlayerSheet extends HandlebarsApplicationMixin(ActorSheetV2) {
 		},
 		window: {
 			resizable: true,
-			controls: [
-				{
-					icon: `fa-solid fa-at`,
-					label: `Manage Attributes`,
-					action: `manageAttributes`,
-					visible: () => {
-						return game.user.isGM;
-					},
-				},
-			],
 		},
 		form: {
 			submitOnChange: true,
@@ -46,6 +36,23 @@ export class PlayerSheet extends HandlebarsApplicationMixin(ActorSheetV2) {
 	// #endregion Options
 
 	// #region Lifecycle
+	_getHeaderControls() {
+		const controls = super._getHeaderControls();
+
+		controls.push({
+			icon: `fa-solid fa-at`,
+			label: `Manage Attributes`,
+			action: `manageAttributes`,
+			visible: () => {
+				const isGM = game.user.isGM;
+				const allowPlayerEdits = game.settings.get(__ID__, `canPlayersManageAttributes`);
+				const editable = this.isEditable;
+				return isGM || (allowPlayerEdits && editable);
+			},
+		});
+
+		return controls;
+	};
 	// #endregion Lifecycle
 
 	// #region Data Prep

module/hooks/init.mjs

@@ -8,6 +8,9 @@ import { PlayerData } from "../data/Player.mjs";
 import { TAFActor } from "../documents/Actor.mjs";
 import { TAFTokenDocument } from "../documents/Token.mjs";
 
+// Settings
+import { registerWorldSettings } from "../settings/world.mjs";
+
 // Utils
 import { __ID__ } from "../consts.mjs";
 import { Logger } from "../utils/Logger.mjs";
@@ -28,4 +31,6 @@ Hooks.on(`init`, () => {
 			label: `taf.sheet-names.PlayerSheet`,
 		},
 	);
+
+	registerWorldSettings();
 });

module/settings/world.mjs

@@ -0,0 +1,12 @@
+import { __ID__ } from "../consts.mjs";
+
+export function registerWorldSettings() {
+	game.settings.register(__ID__, `canPlayersManageAttributes`, {
+		name: `taf.settings.canPlayersManageAttributes.name`,
+		hint: `taf.settings.canPlayersManageAttributes.hint`,
+		config: true,
+		type: Boolean,
+		default: false,
+		scope: `world`,
+	});
+};