In the video "VideoDemonstratingAdTextBoxThatCanDoMath" you can clearly see the properties of the TextBox. It would be really nice to have that implemented on all advance steel connections. Since a lot of the time a use the calculator on my hand and copy (visually) the results.
Another property that would help us A LOT would be to convert inches into mm, so for instance I type this in the text box : 3/8" . The " represents the inches symbol, with it the textBox events would convert the value to => 9,53 mm.