Is there any way within DOPUS to increase the icon size if the icons which shows "display this folder in the other file display", close etc?
I have uploaded a screen shot showing which icons I am referring to.
You can add a button or buttons which use the Go FDBBUTTONS command to replace those buttons with normal ones, which use icons in the same way as other toolbar buttons.
There are a few ways you can use the command, with details under FDBBUTTONS here: Go command.
The icons that command will use by default will go larger than the normal small buttons, and the icons can also be replaced using icon sets.
We'll also have larger versions of those icons which get used automatically, hopefully in the next version. (Still a work in progress, so the plan could slip.)
By the way, you can set the File Display Toolbar to use large icons if you want to increase the size of the things on its left.