How do you change platform speed?

[som1sezhi]

I want to make a platform slower, but when I change platv to 1, the platforms still move at normal speed 

[Dav999]

Are you sure you're changing the platv of the correct room?

[Lollipop]

Wait what's platv? 

[som1sezhi]

Are you sure you're changing the platv of the correct room?

I'm pretty sure it's the right room.

Wait what's platv? 

http://distractionware.com/forum/index.php?topic=897.msg7295#msg7295
Some attrubute in the .vvvvvv that supposedly changes the speed of moving platforms in a room, except it's not working for me.

[Info Teddy]

I'm pretty sure it's the right room.

is the size of your map 20x20? if not, what are the coordinates of your room? if neither of them are 1 (starting at 1), then custom platv won't work