FAQ on mapmaking in Heroes 5.

Guys, please tell me how to remove the “map has no rumors” message?

Just ignore this error message; it does not affect the map's functionality in any way. If the absence of original rumors for your map in the tavern still bothers you, here’s how to fix it: click MapProperties -> Rumors -> Add, type the rumor text, and select the city type from the drop-down list. In the field above this list, enter the probability of the rumor appearing.

How do I display a message to only one player instead of all players, for example, on a multiplayer map?

The function MessageBoxForPlayers([player number],[path to text]); is used for this purpose.
It is easiest to determine the player number using the construct GetPlayerFilter(GetCurrentPlayer())

I save the map, but it stops working, and the editor cannot open it. After saving, its size is 22 bytes. What should I do?

There are two possible causes:
1) The path to the map or the map name contains Cyrillic characters. To avoid this problem recurring, replace all Cyrillic characters with Latin ones.
2) The path to the map is too long (e.g., C:\Program Files\Nival Interactive\Heroes of Might and Magic V\Heroes of Might and Magic V\Heroes of Might and Magic V\Heroes of Might and Magic V\Maps). Solution: shorten the path as much as possible.

How can I make a neutral unit consist of several different creatures?

Place the neutral unit and select it. Then, in the left panel of the editor, find the AdditionalStack line, right-click on it, click Add in the context menu, and set the parameters for the additional stack.

How can I display a text message to the player before a battle with a monster?

Use a script. To start entering the script, click MapProperties in the top panel of the editor, go to the Script tab, and click Edit. Before doing so, you need to give the monster a script name: select it, find the Name line in the left panel of the editor, and enter something like Monster1 (remember that the editor is case-sensitive).
The script will look approximately like this:

function fMes1(heroname)
  MessageBox('[path to text file in Unicode encoding]');
  SetObjectEnabled('Monster1',true);
  sleep(5);
  MakeHeroInreractWithObject(heroname,'Monster1');
  Trigger(OBJECT_TOUCH_TRIGGER,'Monster1',nil);
end;
SetObjectEnabled('Monster1',nil);
Trigger(OBJECT_TOUCH_TRIGGER,'Monster1','fMes1');

Can you tell me how to place a Seer's Hut in the editor and create a quest there? I don’t understand how.

Click on the hut, and in the left panel of the editor, find the Quest line and expand it. Set the parameters:
-Name (script name)
-CaptionFileRef (quest name; click the text field, then click New, enter the filename for the title, and type the title in the text field)
-DescriptionFileRef (same as above, but for the quest description)
-Kind (quest type)
-Parameters (required for some quest types)
-Award (reward)

How do I create a quest?

The easiest way is to go to MapPropertiesTree (one of the buttons at the top; this will open the corresponding panel on the left), find the objectives line, and expand it. There are two options: Primary for main quests and Secondary for side quests. Inside each item, Common is for all players, and PlayerSpecific is for a specific player (0, 1, 2, etc., numbered from zero). Go to the location you want, find another line called Objectives -> right-click -> Add. From here, everything is similar to the case with the Seer's Hut.

How do I switch the map editor to advanced mode?
How can I view hidden game resources in the map editor?

Go to the game folder/profiles/editor_a2.cfg and open it with Notepad. Change the line setvar map_editor_mode = 1
to setvar map_editor_mode = 0
Open the editor and click View -> GameDatabase -> New Window.
A new window will appear. Right-click on the border, select SelectTables, choose the desired resources by checking them in the list, and click OK.
Go to the desired resource in the drop-down list.
Now you can work with it!

How do I upload a map to the website?

Go to the extended message editing mode (button at the bottom), then under the edit box, you will see a button "manage attachments". Click it, upload the attachment (in the case of a map, first archive it into a zip file). Done. Pay attention to the structure of the maps section; it should match the template.

Also, please note that many questions have already been asked in these threads: Current Questions and Answers about the Map Editor
How to Create a Video for a Map?
Scripts