View/Update allocation*" not displayed in the form.

Hello all,

I am trying to personalize the Transact Move Orders form in Inventory.

Business need is to make the button - "*View/Update allocation*" not displayed in the form.

For this, the "*DISPLAYED*" property of this item (*TOLINES_CONTROL.OPEN*) "FALSE"

However when I try to open this form, I get the below error :

"*FRM-41033: Cannot set ENABLED attribute of non-displayed item TOLINES_CONTROL.OPEN*"

However I am able to do the same to a different button on the same datablock and in the same fmb.

Any pointers greatly appreciated.

Thanks