Currently, when updating plugins I can "Update all" or update one at a time. It would be useful to have the ability to select which ones to update at one time, especially when there's a long list of plugins waiting to be updated and you don't want to update them all at the same time. 

For example, we have many plugins and we update monthly so there's often a long list of plugins waiting to be updated, but there are usually 3+ specific plugins that require special handling.  So for this month, for example, I have 33 plugins to update and I need to click 29 of them individually whereas it would be nice to select the 29 and click a button "Update 29 Selected Plugins"