Resize image in clipboard mananger?

I frequently use BTT Clipboard manager to take screenshots for product documentation or support requests. I almost always add an arrow or highlighting to focus on one part of the screenshot or crop down to one area. This is a big timesaver for me, vs. opening the screenshot in a heavy image editing software like Pixelmator.

One thing I REALLY would like is the ability to resize the image in clipboard manager. Not crop...but resize. This is particularly needed when clipping from my Retina monitor, as the screenshot comes out MUCH larger than it was on the screen.

Is there a way to do this? If not, is it already a feature request?