How to show approve button ( list context menu) only for one catalog item

[Vani14]

I have added a condition for approve ui action only showing one catalog item, which is working for the form button but for the list context menu, it is not working

current.sysapproval.cat_item == "sys_id of catalog item".

@Ankur Bawiskar  could you please help me on this

[Claire Ashdown2]

Which table are you trying to put the UI Action (what table is "current")?

[Vani14]

@Claire Ashdown2   approval table