HIDE DROPDOWN VALUE IN PART NEED LEVEL

Dear Experts,

Can anybody help me to achieve this requirement hiding the dropdown value in tab level.

Requirement: Hiding the Urgency Status dropdown in part need tab based on task type.

For example: If task type = “XYZ” then part need Urgency status should have value “ABC1” , “ABC2”

If task type = “MNO” then part need Urgency status should have value “GHI1” , “GHI2”.

Any suggestions is appreciated.

Note: Used Client script array its working fine for task or header level, need suggestion for part need or tab/line level.

Thanks in advance.

Kaustav.