If it's just inches you can add /2 or /3 or /4 Say you know it's 127.25" and you want half of that. Just do 127.25/2 or 127.25/5, etc. So doesn't really work in your instance. But you could do it in segments. 14.5', then 7/2, then 15/32.

I use the /2 trick all the time for simple stuff. It's not hard to figure out half of 37", but 37/2 is so much faster than thinking.

Also this is made easier if you typically use '/' for inches. So 25.25/ instead of 25 1/4" or 25 1/4 or 25.25". Makes it a quick mental leap to 25.25/2 for half that. or 25.25/3 for a third of that, etc.

Long ago, when the earth was young, Dwight christened this the Oingy-Boingy tool and that is what I have called it ever since.

It's very easy to use, start to drag, active the tool, and then click on the start point and then the end point and it will place what you are moving at the midpoint if that is what snap point is set to. Or if snaps is set to divisions such as 5 you have the choice owhich 1/5 point between you want to move the element to.

Distance snap option works similarly
Percentage works slightly different in that it requires you to have the element you are moving at the start point to move it that percentage distance and you will not an option of every 20% e.g.; just the one 20% of distance.

Steven wrote:
Ah ha! A little clunky but I'm sure I'll get used to it...

Steven:

I have assigned this a keyboard shortcut (you can find it in the Work Environment at Keyboard Shortcuts > All Commands by Theme > 11 Actions > Special Snap Constraints) and use it without a thought.

David

I'm finding more and more times when this is an awesome trick. Thanks. I'm going to share it with the Minnesota ArchiCAD Users Group tonight.