If you want to perform actions on multiple candidates at once, you need to create Candidate Groups. Candidate Groups can be for any organizational purpose you have. Once in a group, the following actions can be performed on any candidates selected from the group:

Note that when assigning investigators, this action will create a case if none exists but the case will not have a position assigned and the PHS Version will be Classic by default. You can then select the same candidates from the group and assign the position to meet your needs.