Um i have not used spider mines for quite a long time.... However if i remember they have a switch in the task bar to set them to act as normal mines or to act as spider mines, so if you want to use them as normal mines then switch them so they wont move to engage.
guhk how I hate using a guest acct. The computer I'm on right now blocks all cookies so Revora can't remember that I'm logged in. :(
Anyhow, No, there is no such button BUT no such button is required. If a spider mine is given a MOVE order to a location it will sit pasivly and wait to be squished (boom) like a std mine. If a spider mine is given a GUARD order it will protect the entire area and chase anything it sees.
I use spider mines alot.