Sometimes we only want view a file content quickly and in that cases, on current version of GUI, we need close the tab after do a single click on some node in the tree.

I think that would be nice, if we can have a "preview mode" option. When we do a single click, a tab is opened with the content of the node, but if we click on another node, the content of these tab is replaced by the new one. To open a node content on new tab, we can do that by double-clicking on the node.

Preview mode on VSC