Hello Robert,
Thanks a lot for the hint! I have been very close to finding that spot before asking the question...
Just a reminder to anyone who is also new to xDxDesigner and integrated flow, if you find all buttons
are greyed out when you open "Central library Migrator VX1.1" from start menu, try to do:
1. create an empty integrated project.
2. open that project in xdxdesigner and click the "xDM Library Tool" icon
3. click Tools --> Import PADS library ...
4. Select Add libraries ... and find the .pt9 file to import decals. There are other options to import symbol
Best,
Liang