Yap,
We had to build custom dial user control , now uStore gives ability to
get values from the database as long your database SQL Server or can
be connected from SQL Server.
So we build Checkbox List , all values were coming from SQL Server
Table . After customer selected some values or all of them (we had 2
friendly buttons "check all" and "UncheckAll" ) values were
concatenated with some delimiter (can be also XML) and passed via
variable to the plan file. Once you in the plan file you can build
dynamic user view from it .