Decrease the size of the kanban board, group columns or other solution...

How do I decrease the frame size, have any solutions?

I need all these sub columns: New Reopened, Approved, In Progress, Outdoor Pendant, Indoor Pendant, Analysis Mill, Mill Development, Internal Development, Waiting Accept Internal, Waiting Accept Manager, Resolved, Verified, Postponed, Cancelled, Completed .

But the kanban board is giant, making it impossible to display the panel.

Is there any way to agrupalos, for example: In the column underway group Internal development factory and development on a table just like in jira.

Its group subscolunas as in jira? 

There is the possibility of two sub columns in one column?

I have to modify by javascript? 

I used version 5.0.2 jazz

Thank you from already