I assume you don't want to use a portal to donations on your members layout? That's one way to see all the donations for the current member record that doesn't require switching layouts.
If you want a script that finds the donation records for the current member record, you can use a script like this:
I'm assuming you have established a relationship linking member records to donations by an auto-entered serial number, MemberID. If not, you should and you shouldn't use names for this link either.
Set Variable [$MemberID ; Value: Members::MemberID ]
Go TO Layout [Donations]
Enter FInd Mode
Set field [Donations::MemberID ; $MemberID ]
Set Error Capture [on]
Perform FInd 
Sort [No dialog ; Restore]//Don't have to have this step, but you'll likely have an order for your listed donations that you'll want to see here