Windows how do i set a room as persistent before entering it?

[gekidoshi]

my problem is that i need to enter the room to make it persistent

 

[Yal]

How about room_set_persistent?

 

[gekidoshi]

How about room_set_persistent?
View attachment 35830

like this?

if place_meeting(x, y, shopenter) and keyboard_check(ord("Z"))

{
room_set_persistent(shop, true);
   room_goto(shop)
}

doesn't seem to work