I don't know if this has already been posted, but I noticed a little editor bug.
Create a dynwall and change its transparency value for example to 0.5. Open the entity properties again,
change the transparency to 0.6 and accept. If you open the entity properties again,
you'll see that the transparency value hasn't changed.
If this hasn't been posted, I hope DC will fix this in the new version of CS2D.
Greetz.