Hi，
The left mouse button is set to Auto-deselect. When dragging and selecting files, the selected files can only be increased and cannot be dynamically adjusted.
I just noticed that if I drag from the background, the selected files can be dynamically adjusted.
Can all be set to dynamically adjust? Seems more efficient.
Full Toggle and Partial Toggle work like that.
Normal Drag Select also lets you click a selected file to deselect it, and drag from there to deselect others.
I think the normal thing to do with Power Mode is to use multiple mouse buttons to give yourself more than one mode to work with. That's how the old systems it aims to emulate worked.
(Personally, I just use Details mode. The extra toggle-select functionality we provide on the middle button in Details mode, on top of the standard Windows left and right-click behavior, does everything you might need, or at least everything I've ever needed.)
Thanks Leo, I see.
I use a Logitech mouse (Anywhere 2), the wheel can only switch its scroll mode, there is no key function. So I always use Power Mode.
I think the second way is better.
Mouse drivers usually let you configure the middle click to be a standard middle click, even if they aren't by default (which I think is rare these days, since it breaks middle clicking links in web browsers).
I have used this mouse since it was released, and I have enjoyed it for more than ten years. But it's very special. The wheel doesn't have an electronic switch. It can't be clicked as a normal middle button.It cannot scroll the page.
I noticed today that Drag Select from the background can be adjusted dynamically, but it is still more convenient from the file name.
@i5151 Is this the mouse?
Yes, I have used 5 or 6 since the original 905.
Full Toggle and Partial Toggle work like that.
How is it achieved in Power Mode?
Thanks Jon,
Full Toggle or Partial Toggle is not as good as Auto-deselect. The files selected by these two modes are difficult to cancel. I often close Opus and reopen. Sometimes I have selected files elsewhere, but I forgot. I delete other files, and it is easy to mistakenly delete files that have been selected before. This has happened many times. Later, I found that Auto-deselect is the most reasonable mode.
Selections are not saved if you close and later re-open the window. I'm not sure what is happening there?
FWIW, the old software that Power Mode aims to emulate would have a separate Select None (aka Deselect All) button on the toolbar for deselecting everything. That command is in the Edit menu by default, but could be moved to a toolbar. Or you could configure double-clicks on the folder background to deselect everything, or use a hotkey, etc.
If you're just using the Auto-Deselect mode and not using any of the other Power Mode features, you may as well use Details mode and keep everything using the normal Windows behavior. (That is what I do.)
I reset the default window and do not update the default window. Only the default window is opened each time.
Auto-deselect mode Just click on the background and all selections will be canceled.
Do you mean that Details mode is the better mode? I think the Power Mode is more customized, so I always use the Power Mode.
Nothing will be selected when you open a window, unless a script or something is doing something unusual.
Power is more configurable than Details, but also more complicated and non-standard. It only makes sense to use Power mode if you're configuring it to do something that Details mode can't also do. (Maybe you are, in which case keep using it. But if you aren't, Details mode makes life a bit easier.)
You're right.
I used Details mode at the beginning, which is similar to Windows Explorer, but I quickly found that Power Mode is more powerful.
More and more like Power Mode, and more and more like Opus. You are all geniuses.
Thanks Leo and Jon, I still hope that Drag Select(Auto-deselect) can be dynamically adjusted in Power Mode. 
