Just applied SAP GUI 640 Patch Level 21 and my old 'workarounds' for SapWorkDir do not work anymore. Probably, there is official SAP document with the answers for the following questions?
1. How could I set SapWorkDir for SAP GUI?
2. How could I set SapWorkDir for particular SAP System?
3. How could I set SapWorkDir for particular SAP shortcut?
4. How could I change SAP GUI trace dir/file for active session?