Slickgrid does not allow duplicates, but sometimes we need to have duplicates in a view. I have two entities (location and role) with a relation that links them (relation module) and want a view that looks like this:

location 1 | role 1
location 1 | role 2
location 2 | role 1
location 2 | role 2

But because "location" is my base table, I get this error:

There are duplicate ids in this grid - each row must be unique.

Now I do have a unique field here, but it is the relation id (rid), not the location id (id). Can we either allow duplicates, or allow the administrator to specify which field is the unique ID??