I would like to make a suggestion towards Screenshot Captor. Without doubt, it is very rich in features, but sometimes it just ain't fast enough because it might involve extra step.
My normal work day would be activating WhatsApp (WA) & Telegram on desktop. Several times each day, I'd be taking screenshots, copy (without saving it) the image, and paste it (CTRL + V) in the WA or Telegram window.
With ScreenShot Captor, I would have to choose "Save Image and Show" before I could edit the image.
With my previous screenshot program, editing the image, adding box, drawing arrow without having the need to save the file first. Though it lacks of able to change the font size and others.
So, the question is, could you add a fast mode feature, that is after taking screenshot, be able to edit it, click "copy" button, then I could just paste it (CTRL + V) merrily in the WA or Telegram program.