How do I place the same contextual link on multiple pages?

I created a few panel pages
page/all
page/upcoming
page/past

page/all is the default menu tab

I want to create a contextual link to add an event.
I can give it a page of page/all/add

But If I want my contextual link to show up on all, upcoming, and past do I have to create 3 different panel pages ie:
page/all/add
page/upcoming/add
page/past/add

or can I create one panel page with a contextual link that applies to all of them?
Is the page path page/*/add an option?