Is it possible right click select?

Hi, all.
I wondering is it possible to create button or "else" that give me chose when I right click inside
panel/tab I can select every files with same extension.

If this can't possible I have a program (Moo0 RightClicker) but dopus cant show it after right click in panel/tab.
Actually dopus not allow to be displayed.
How do I enable display it.

See pics.

Dipus —> Explorer —>

You can add this command to hotkey, button or context menu : Select SIMILAR

Thanks.
I
It's pretty good, but only for button.
I tried (and I done) create context menu but not is like original programs.
Don't like me to select files and then select all ....., however.
Is there a way to add or enable it (Moo0 Right Click) to context menu?
II
I mean, when I click the left mouse button to automatically identify the types of extensions directory. From me is only required to choose an extension, size or name under which to select.

Is it possible to execute at least one of the two conditions?

This soft seems to replace totally the right clic menu and i don't think that it's possible to do that in DO.

Actually, Yes.
Maybe I had to start with this at the beginning, however.
Now, I try something and post result.

But if somebody fined solution, post it, please!
Until later.