Hello Pierre, thank You for Your response
I've tried many combinations of switching modes, but I couldn't achieve the same behaviour like in 1.74 version

. In the old version it was possible to browse images and view them in
strict fullscreen mode
using only the keyboard (Enter and arrow keys). It was very usefull for people who don't like a mouse (like me). Now I can't achieve this using available parameters in options.
Let's imagin scenario:
Options are set like below:
(a) General>Startup>Maximize XnView at Startup : checked (on)
(b) General>Startup>Start Viev in Fullscreen : checked (on)
(c) Browser>Launch Browser at Startup : checked (on)
Step 1. Image is opened from Windows Explorer (by file association). It is shown in Fullscreen mode, according to option (b).
Step 2. Now I want to run a Browser mode by pressing "Enter" to take a look at the other images located in the same directory.
It's possible only when option "General>Switching modes>Use ENTER to switch between" is set to "Browser<>Viewer" or "Browser>Viewer>Fullscreen".
Step 3. Beeing in Browser mode, after choosing another image (using arrow keys) I want to view choosen image in Fullscreen by pressing ENTER again, and... in both cases ("Browser<>Viewer" or "Browser>Viewer>Fullscreen") image is shown in
Viewer mode, not in Fullscreen !!!
I thought, that the solution could be setting the option "General>Switching modes>Use ENTER to switch between" to "Browser<>Fullscreen | Viewer<>Fullscreen", but in this case, only "Viewer<>Fullscreen" works.
I think, that the reason is, that when XnView is started by file association (by opening file for example in Windows Explorer) it's always started in Viewer mode, even if option (c) is checked.
I think, if this issue could be fixed (I believe it's possible because it was fine in 1.74 version), XnView would be the best image viewer