Current questions and answers regarding the map editor.

The editor has been studied at a decent level, and I want to create something complete. I am interested in the topic of how to add my fan-made campaign to Heroes 5 and link the leveled-up heroes between missions. I would be very grateful.

Hello. Campaigns are created through Tools => Create Campaign. It is not necessary to have all the missions created; campaigns can be edited by simply opening them in the editor. After creation, a new window will appear; you will quickly figure it out. If not, ask.
After creation, the campaign file will be sent to the folder: Game folder/User campaigns/.