If one testcase from workflow are using PDF addins , should we select PDF addins for all testCases these are included as external actions

Hi All

I will have following testCases as following.
Question Here Is :
If will do somthing about PDF in action_OpenPDFAndDataValidation In testCaseD, should we also select [PDF] addins in testCaseA, testCaseB, testCaseC ?

testCaseA
action_Login

testCaseB
action_Menu_Selection

testCaseC
action_Transaction
externalAction - action_Login In TestCaseA
externalAction - action_Menu_Selection In TestCaseB
externalAction - action_OpenPDFAndDataValidation In TestCaseD

testCaseD
action_OpenPDFAndDataValidation