It's easy to add your [MapKnitter](https://mapknitter.org) exported map as a background layer when editing OpenStreetMap in Potlatch 2.
First, open the "backgrounds" menu and choose "Add":
Then, add a new background layer, using your map's "**OSM-style TMS**" link, with added z,x,y like this:
https://mapknitter.org/tms/mestia/alt/$z/$x/$y.png
Where "mestia" is your map's name. See screenshot:
You can turn off "dimming" to see the map more clearly:
Zoom in and see how well your balloon map fits existing data. Then trace to add more features:
