Apologies Stéphane for not responding nearer in time to your response (I wasn't subscribed to the topic, I am now).
The most efficient current procedure to get a link from MLO into a browser involves:
1. In MLO. Click node to edit (as you suggest).
2.
In ML. Ctrl + A to select all the text of node, in the case that the node contains only a link; or (as you suggest) using mouse or keyboard to manually select the text.
3. In MLO. Ctrl + C to copy the link.
4. In Browser. Ctrl + V to paste the link
5.
In Browser. [Enter] to execute web page loading.
There's nothing unintuitive about this procedure, at least for those of us at a minimal level of computer literacy. The problem is, rather, that's an ineffecient procedure compared to
*ctrl + click to open a link* functionality.
Note also introducing *ctrl + click to open a link* functionality would not interfere with *click to edit a node* functionality. So it's not a choice of one
functionality
over another.