Feature classes in the same database can be grouped for editing. Layers that belong to the same “editing group” can be edited together within the same GISquirrel editing session. This may be useful for a number of reasons. For example you may record an entity such as archaeological sites that can be represented by points, lines or polygons, so you would have three layers with identical data structures, and assign them to the same editing group. Or you might have two different types of records that always tend to coincide spatially, such as footpaths and signposts; if these are assigned to the same editing group, they can be edited at the same time making it easier to maintain these spatial relationships.
A feature class can be assigned to a group when it is imported using the GISquirrel Import Layer tool, and editing groups can also be managed using the Feature Class Administration tool.
Note: it is inadvisable to configure an editing group to contain multiple GISquirrel feature classes based on the same base table, because this risks duplicating features in the base table if existing features are edited. Having multiple GISquirrel feature classes based on the same base table is fine so long as they have no editing group, or are in different ones.