Standard Task TS17900100: copied to custom task and adding fields

Hi,

I 'm trying to implement HCM forms with workflow with approval process.

part of this exercise, copied standard task TS17900100 to a custom task and trying to add more fields.

[form_field name 4, Form field value 4 etc...]

but when I included this task, into workflow, I am getting only 3 fields.[Standard task having 3 field parameters].

Please suggest here

If we want to import more fields from FPM form, how we can achieve that?

my scenario is execute the FPM form in [using Webdynro screen] once we select 'SEND' trigger the workflow.

There I need to capture few fields from FPM into workflow-TS17900100.[as in Workflow standard Template -change in pay]