Board groups are used to link similar boards together to pin relevant content to each one more quickly.
Rewst allows you to group all of your similar boards together. This functionality makes it a lot easier to pin content to multiple boards. You can have unlimited groups with unlimited boards in each.
To create a group you just go to the groups page and click on the create button. An overlay will pop up where you can name the group and select the relevant boards. You can filter through your boards by typing in parts of the names to make it easier to find the board you are looking for.
This doesn’t do anything to the boards on Pinterest. It’s only used within Rewst.com.