I would like to 2nd this request. I manage over 200 units and use Winbox (currently v3.24) exclusively. I only use Webfig on rare occasions because I really prefer the efficiency of Winbox. With Winbox, I can set and save the various window columns that I prefer when I connect to a particular router but, I have to do it again and again for each new device that I connect to. Seems that it should be possible to configure my favorite columns as a basic default so that every router I connect to shows what I prefer whether or not I have connected to it in the past.
To add even more annoyance, I use several computers (2 different desktops, a laptop and my phone) to connect to Mikrotik devices and of course whatever I do on one for a device doesn't get remembered for the other computers.
Not sure if this is the place for WinBox stuff.
Would like some way to set up default settings for WinBox. Probably not exact window size and position (maybe column width, though?), but primarily I always set up inline comments, and show a few extra columns, such as To address and port in the Firewall NAT table.