re Crenlations

https://forum.profantasy.com/discussion/8114/castle-wall-tower-crenelations

It might be worth checking if all the text is on the same layer (being an old map I guess there are no sheets).

Hide all but that layer and it will be easier to select.

And/or select by type

The Roman theatre in Caesarea - note rows of stairs half hight of the seats, and the vomitoriums for crowd entrance in the upper tier.

Main structure roughly 10 BCE, but refurbished several time in later periods

When you right click the "smooth path" you have an option of adding arrow heads "curve with Arrow". The only less intuitive (for me) was that you start from the Arrow head and go "back"