How to load a map in the frontier_exploration for the resumption of the frontier_exploration in uncharted areas

[amburkoff]

On the first day, using frontier_exploration, I create a corridor map and save it via map_saver.
On the second day, I need to load the map into the frontier_exploration and continue creating the map in the unexplored rooms.
If I upload a map to frontier_exploration using map_saver, it will simply be erased.
How to save a map from frontier_exploration so that it can be loaded back into it and continue research in unknown areas?

[mrunaljsarvaiya]

Did you happen to find a solution to this?