questions on using propertys

am running into some issues and questions. i am editing a module, to re-release with some improvments and update the pieces.

how do use the prop’s on the prop sheet?
the wiki could use a couple of expressions examples on the propery page (just a side note)

ack… i had more questions… but can’t remember as i write this. :frowning:
at least the topic is open or re-opened for when i remember.

thx for any help.