SmartTiles Dashboard v5.6.1: New features (SHM), Bug Fixes, Diagnostics - Dec 11, 2015

Currently not. Everything is build on a square grid system, so only a few special Tiles have individual size configuration (clock, video), just a multiple of the grid size.

There are some folks very clever with the add-on CSS option; I don’t even pretend to know what may or may not be possible in that regard as a interim solution. I don’t think I’ve seen anyone attempt to resize individual Tiles with CSS alone; but check out the Topic, post, and maybe see if there are ideas… Dashboard Theming (Custom CSS) and Mounting Hardware Ideas