Thanks for your feedback.
We are already working on larger toolbars.
We will consider the checkboxes.
I use WinSCP primarily on a tablet so it would be great to to have a more touch friendly interface. A way to select files using checkboxes like Windows 7/8 explorer and/or even just an option for bigger toolbar buttons would help. Right now it can be a fine line between opening a saved directory and deleting a file! Thanks.