Please, bring back "View selected images" function from XnView 1.9. I think it's very useful feature :
1. Highlight several images in XnViewMP browser
2. Hit Open / press Enter
In XnView 1.9x ,
The feature you are referring to is a tickbox named "Open only one view for multiple files (startup & drag & drop)"
...It is located in the Options>View
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I too look forward to seeing this feature return to an XnView MP release