Hi @eibyer, welcome to SharpTools community. Free license can have 1 dashboard and up to 15 tiles, and you can find more details in the page below.
I’d also suggest to visit the “show-off-your-sharptools-dashboards” thread, to get inspirations from other users’ dashboards. I found myself learning from other users’ creativeness quite often. 
Feel free to let us know if you have any questions.