CRM 7.0 Ehp1
I would think this could be common request, You have configured role ZSALES with role config key ZDEFAULT and you need a new role with slightly different screens but you dont want to start from scratch, need role ZSALES2 with config key ZDEFAULT2.
I fould this SDN blog which I thought would do the trick but I'm not seeing it, as it does't generate a log that I see.
http://wiki.sdn.sap.com/wiki/display/CRM/CRM-MasscopyofUIconfigfromoneroleto+another
after executing the program in that blog I am not seeing any entries in tables
bsp_dl_xmlstrx2 or
bspc_dl_xmlstrx2 with the new config key ZDEFAULT2