Help with resize zoom filter -lock controls??

Im creating a strictly zoom filter that resizes the photo here is the kicker Im going to make 12 preset sizes and need to make sure the controls are absolutly locked except for the one I provide yet sometimes filter forge randomizes stuff that isnt marked with controls
Is there a way to lock theese feetures I thought I read some where you could but dont recall where
Thanks

If any one else is curious and wants to do it since I probably wont for a while
step one 2 profile gradients


gradiant a = 0 rotation
gradiant b = 90 rotation


add a level curve
invert the curve
now do a slight slope to it
use this as the profile for both gradients


now add a offset
gradient b = v for offset
gradient a = h for offset
source your photo

add a second offset
source your previous offset
offset h -100
offset v -100
percentage == use this to center the resized photo

now add a frame component
contents white
inner frame black
outer frame black
corners 0
margin 0
frame width (will be controlled)


now add a set alpha component
your frame will be the oppacity
the source your last offset
you now have a resized photo
I used two switches one filled up with the first levels of zoom the other with the smaller zooms
then connected them with a third switch that allowd you to choose the level of zoom and whether it was a colored background or the orriginal photo as background

all in all I had 20 zoom levels to the riddiculously tiny levels