EL Expression to restrict via Action in Page Composer

We have the requirement to hide a few fields under Additional Assignment Info on the Convert Pending Workers page. Under one section, they want a few fields to be visible while others should be hidden for Contingent Workers.

We tried in HCM Experience Design Studio, but we are only able to restrict by each section, hence we thought to hide those fields in Page Composer.

Please help us with the EL Expression to hide those fields only for "Add Contingent Worker" action on Convert Pending Workers page.