I guess you are on macOS?
It is still broken in macOS Desktop 10.9. See my workaround comment in this github issue. You need a second graph to make the select graph UI show up and then you can use a trick using Shuft-Click to make it happen.
see also: Shortcut for New Window gone?
In short
- Open a second different graph as new window
- Change that graph to your main graph or open a new window of the original graph using Shift-Click.
Why this workaround?
- The menu Shortcut simply does not trigger the new window (bug), → see the ticket for progress.
- The current graph does not show up in the selector.
Using Shift-Clicking the logseq URL of a different graph in the contents page in the right sidebar was working to open the target of the link in a new window as well as far as I remember, but this is also not working in 10.9 anymore.
- Clicking these links should open a target (page) as new Window in a different graph in , when not already open. Shift-Clicking is not helping there. You need the link for a common page like logseq://graph/my-logseq-graph?page=Contents
- This is opening the other graph when the target graph is not open and can be changed back to the original graph there in the selector.
- maybe this is an OS problem and the shortcut tries to open a second window on OS level and this is now blocked by macOS. Missing console events leaves this unknown for me.