Hi great mod. I have a few issues. One major problem is typing a period ( . ) without anything before it crashes the game. I didn't understand at first that you were supposed to type something before the period. Another, is if you have more than one rail network that are not connected to each other ...

Yes it is true that the items built into walls would be susceptible to attack and that is where you would make the choice to do it or not.

I think i may start a different suggestion to make an item like chain link fence that can block the player as an alternate to this idea.
https://forums ...

This is a spinoff idea from my other post about integrating items into walls.
https://forums.factorio.com/viewtopic.php?f=6&t=36992

Instead of that, maybe a chain link fence could be implemented. This would block the player from certain areas of your base or act as a beginner rudimentary defense ...

Subject says it all.

My main reason for this suggestion is as follows:
I created train crossings and have walled off my rails inside the base so I don't get killed by a passing train. I have little sections of wall jut out from my main wall to surround train signals and it really bothers me. I want ...

Yes, I support this idea.

Also I agree there should be a key needed to force place. Also I agree it should ignore the player, maybe you can use the force place for player ignore.

When you take an item from your toolbelt and then click it on the border of the toolbelt, the game crashes to desktop. This happens 100% of the time.
I don't remember this happening in 0.11.8 but then I wasn't trying to click on the border either.

Seems there is no helpful information in the log ...