Delisting but retain shares in delisted entity

Hi,

I’m looking for assistance on how to manage a delisting event in sharesight. TGO delisted from the ASX on the 31 Dec 2020, but I opted to retain my holdings in the delisted entity.

Can someone confirm whether or not I should create a customer investment for the delisted holding and then merge the previous ASX holding into that one, or take another approach?

Thanks,