Hello~
I decided to explain you guys how i made certain things in my game. ^^
I had to teach myself a lot of things for game programming and would have been happy for such a thing, so i want to give others the chance to learn what i learned by experimenting:

Problem:
In Foxquest the main protagonist Lyhra, an Kitsune who is mostly running around as Feral or Anthro fox, shouldn't walk around as such and so on this map she have to turn into a Human before she enters the village.

Solution:
The player starts on the Events that i marked in blue. And when the player steps onto them, Lyhra will return to the overwold. They also will deactivate two switches that will be used in the Events 2 and 3

When the player want to leave the point where Lyhra entered the area, one of the blue events will be activated.
They activate a switch called: "Become Human"
And deactivate a switch called: "Become Anthro" (That is important for later)

The switches that i marked with the 3 only get activated when the switch:
"Become Human" is active.
They let Lyhra say that she can't walk around in a human village the way she is and that she should transform into one before she enters it.
Then the event does this:
It changes Lyhra's Sprites from Anthro to human
Activate a switch that will make sure that from now on the player will only transform and don't get the entire text again.
deactivate the "become human" switch
activate the "become anthro" switch.

Now that the "become human" switch is deactivated, the player can walk over the Events 3 without trigger anything.
And if Lyhra steps on her way out of the map on one of the events 2, she will be turned back into her anthro form, because of the active switch "become anthro"
The Teleporters 1 then also deactivate the "become anthro" switch when they are used.


In short:

1: Start point of the map
Deactivate: become anthro

2: Activate: "become human"
Transform the Player into an anthro, when: "become anthro" is active

3: Transform the Player into a human, when: "become human" is active
Deactivate: become human
Activate: "become Anthro"