is there any way to make Gridster.js tile(s) stick, that is not move up vertically to fill empty space. Kind of like the way a layout program with snap-to-grid turned on works..
You may also be interested in the following prototype from my team: https://github.com/ibmjstart/gridplumb
Specifically, the modifications to grister can be found at https://github.com/ibmjstart/gridplumb/blob/master/src/extend-gridster.js