1) Sorting Picklists
On RS, when you build a picklist, you select your field and the values don't get sorted, and there is no option to do so. I found a workaround, but it's not very clean.
2) an option to remove the item(Select all) in multivalue parameters
When you set a picklist to multi-value, RS automatically adds the option "Select all"
Since a query is very often limited to 999 inlist values, you run into trouble pretty fast, and it's a big performance issue, if people just select the lot.
Would be nice to have this option.
3) some way to pre-test scripting.. the way it is now, scripting is very under-developped. In fact, it's just a window where you can enter text.. period -- wouldn't mind some intellisense :) .