Is there a way to make notifications center always visible on mac? Is there a way to setup the notification center stays visible until closed manually i.e. via keyboard shortcut?

For example, if I’m using a calculator I sure don’t won’t to open/close the thing for each calculation.
I don't believe that it is possible, unless you manage to go into the Notification Center code on the computer and edit it to keep it open even when clicking off of it.