How to change signed key of unpublished app (draft) on Quest Store?

Hi there,

I have an few apps which are not reviewed yet and they are published in draft on alpha and beta testing channels. All apps using different signed keys, I want to use a single signed key for all apps so their data can be shared easily.

I tried changing the signed key and when I pushed it to beta channel i got error "The APK is signed with a different certificate". 

My question is my app is not published yet to production, is there a possibility that I can change the signed key before its reviewed? I do not want to change the package names and upload them as new apps.