You can use a LOOKUP function on the currency selection line item (which has the user dimension). The formula should look similar like this:
" SourceModule.SourceLineitem [LOOKUP: Currency Selection] ". Please note that your source module should have the currency dimension and your target module needs at least the user dimension.
Another option would be to add the currency dimension in the target module and let Anaplan calculate to all available currencies (efficiency depends on the amount of currencies). Then pivot the table so that the currency dimension is in the page selector place and all users can select the currency they would like to see. With this option you don't need the user dimension at all.
Let me know if you need more help on this.
Kind regards, Stef Jansen in de Wal Finext Performance Management