Currently we have scope to design Dashboard with six columns at best. If we apply view limitation, all six columns are subject to that view only. I think, it will be much more effective if we can specify view limitation column basis like Column 1 will show me the status of all nodes of Group A, Column 2 for Group B and so on. I mean, view limitation right now has only one option, but it will be nice to have multiple option i.e. it can be specified for all columns or for a particular column.
If you like it, go for it.
BR
Akbar