that I experienced
step 1 : open : Module Type "MEDIA" Name " Perjanjian Lama" klik "Details"
step 2 : choose tab : Media List
step 3 : klik Update from Title "KEJADIAN"
step 4 : I make Tombol (Bottom) & Kolom Seleksi (selection column)
step 5 : I do not find the option to lock per...