Board Thread:Questions and Answers/@comment-2600:387:0:809:0:0:0:1A-20190624111142/@comment-31595794-20190624120831

You have two choice: 1) If you want get extra bonus IT slot, that is via SO/VO section of Shop, when PF given them, they are in gems though. 2)If you go to Extension under Shop section, you should find IT Slot, you could buy in material/gold or in gems.

Hope that help.