How to: Warrants, Mergers, SPACs?

IPOE.U (SPAC warrant) merged/taken-over by SOFI, and then warrants exercised and liquidated.

I have changed IPOE.U to SOFIW via Holding Settings/Merger, however I am unsure how to treat the liquidation of the warrants. Return of Capital, Bonus or something else?

I had a look through but there is nothing referring to warrants or SPACs.

Does anybody know how input this into Sharesight? Thanks