Remove User from Assignment Group with Flow Designer

[Gabriel Ho]

Hi, I`m looking for an "Flow Designer" flow to remove ITIL User from her Assignment Groups.

I dont want to delete the Group, I only want an automatic flow, who can remove the selected Groups from the User Groups (selected in Catalog Item).

Have anyone an Idea?

I know, that I can use the table sys_user_grmembers

[Pedram Haghzab1]

Thanks a lot. 

Another dead end:

Also, doesn't the reference qualifier need a script include?

Thanks