1) Regarding adding money to a specific player.

Company Menu -> Map Properties -> Events Tab -> Select the Calendar Event category -> New button -> Specify the color of the desired player, set the "first appearance" parameter to 1 day, and set the "next appearance" parameter to every 25 days. -> Next, go to the Actions tab and specify the amount of gold as 3000. If necessary, also specify a message -> OK -> OK

2) Adding a Dragon Golem

Units can only be added to a specific garrison or to the army of a specific hero.

For example, for a town. Go to the town properties -> Events Tab -> Select the Calendar Event category -> New button -> Specify the color of the desired player, set the "first appearance" parameter to 1 day, and set the "next appearance" parameter to every 25 days. -> Script Tab -> Action "Give Units" -> Select the type and quantity of the desired units.