Show leaf path as title/tooltip

api/js/etemplate/Et2Tree/Et2TreeDropdown.ts

@@ -470,6 +470,7 @@ export class Et2TreeDropdown extends Et2WidgetWithSelectMixin(LitElement)
                     tabindex="-1"
                     variant=${isValid ? nothing : "danger"}
                     size=${this.size || "medium"}
+                    title=${option.path ?? option.title}
                     ?removable=${!readonly}
                     ?readonly=${readonly}
                     ?editable=${isEditable}

api/src/Etemplate/Widget/Tree.php

@@ -530,6 +530,7 @@ class Tree extends Etemplate\Widget
 			// 1D array
 			$category = $cat + array(
 					'text'  => $s,
+					'path' => $categories->id2name($cat['id'], 'path'),
 
 					/*
 					These ones to play nice when a user puts a tree & a selectbox with the same