I'm sure this used to work. But seems off to me in v8.1 bld 2467
Here is an HTML cell in a FORM where I'm adding a button.

Here's is the code after the button is added.

Here is the Logger.
It should have received an Offices Object, not a RegularUser Object.
The 851333 is the correct ID#. But I think its confused, esp. since it said "Value of attribute OfficeLicenseNum of object Offices could not be resolved".
That SURE should be able to resolve IF that BO was passed correctly.
I think its confused because the parm is named LIRU.ps_CurrentOffice