Hi there,
due to some Twitter conversation with Guillermo García, I decided to create a tool that allows storing a node selection to go back to it whenever necessary. It creates a tag inside the selected nodes and creates a menu where the different selections are stored with the name that you have given to them. Sadly, the menu is erased each time you close Nuke, but there is a workaround. You can give the same names that you had before to empty selections, as the tags inside the nodes haven’t been erased, it will restore those selections.
You can find it at my Github site.
Xabier Arrieta Alaez 