While we are on the topic of new options i was wondering if a tool similar to prop could be added.You choose the new prop tool then draw a box,a small window (similar to prop menu) pops up and asks (property dropbox,value and which element dropbox in the box.choosing an element from the drop down menu and changing it ctype will only change that elements ctype and not the others in the box.

for example id i draw a box around a few elements that include wifi,aray,dlay and metl and choose wifi from the dropdown list and choose temp from the prop dropdown list and choose 273.15 as a value then all the wifi in the box will have their temp changed to 0 while the other elements in the box stay unaffected.