No worries For modifying tile connections (edges) it so happens that I helped another developer with this not so long ago. Here is a link to the start of our conversation (it continues over a couple of pages). See if reading that helps you add the feature you want. If not get back to me and I’ll help you along.
In other news I had some fun experimenting with changing the move animation based on properties of the grid. In the gif below the unit jumps if there is a height difference between tiles on the move path over a certain threshold. Also it crouches if it finds a custom blueprint (the blue frames) in the GridObjects TMap. Early experimentation, but it looks promising:
https://media.giphy.com/media/EQ6sZo84wJX09Y5YjV/giphy.gif