no idea what an rpg 'tut' is, but for making a hero, copy paste the paladin/archmage/blademaster etc, i dont know why there is no hero check box option but that should work... and for selecting, theres lots of ways... ill list my favorites
A: Selecting with a wisp: Put all the heros u have in an area seperated from the rest of the map, put a circle of power in front. When a wisp walks on the circle it should destroy the wisp and create the hero.
B: Selecting by a click: Theres 2 ways u can do this, a simple unit selection to create 1 or convert the owner to triggering player, or a double click feature. For double click create a Boolean variable with as many arrays as players, set default to False. Name it "HeroClicked" - When they select it the first time run an if/then/else, if HeroClicked equal to true then do create (hero) at (region) else do set HeroClicked= True
C: Shiny Buttons: Use dialog for selecting, this probrably wont work unless u got under 8 heros, or 8 heros per race with under 8 races. If u got 8 heros, make a dialog with the hero type as the name, set each dialog button to a dialog button variable, make a new trigger with event (button clicked for SelectionDialog) and actions to create the hero, or if u got races make a dialog before that where u choose a race, say its human so a new dialog pops up with paladin, archmage, bloodmage, and mk... get it?
You can also make your own hero selection, ive seen people make neutral share control and make the heros have a selection ability based off warstomp, when u cast it u get that hero etc... if ur new to triggering etc, just use the wisp one its the best...