Merging Databases (Transfer-update & Global Free Agent Challenge)

Hi.
I'm trying to play with the newest transfer-update (because of the CA/PA changes) and the Global Free Agent Challenge.
Is it possibly to have the changes in the transfer-update and the contract-changes in the Global Free Agent Challenge merge? And how do I do this?

I tried activating both when starting up a new game, but the transfer-updated players contracts remain.