app/Filament/Resources/GrMasterResource.php

@@ -43,6 +43,7 @@ class GrMasterResource extends Resource
                 Forms\Components\Select::make('plant_id')
                     ->label('Plant')
                     ->reactive()
+                    ->searchable()
                     ->relationship('plant', 'name')
                     ->options(function (callable $get) {
                         $userHas = Filament::auth()->user()->plant_id;