Create Custom Container Grid Layouts

I would like to enter a new feature request that would allow the user to create their own custom Grid layouts in the VizLib Container object.  Currently, the user can select a grid layout from one of several pre-defined layouts.  I’ve found that these are a good start, but it would be much better if I could create my own custom grid layouts.  In my particular use case, I want to add several variable objects along with the main chart in a container object.