Enhancement: The save button is confusing, ways to make it more clear

[nicolelaine]

Is your feature request related to a problem? Please describe.
Right now, the fact that the save button is greyed out until the end of swiping has caused some confusion. Because folks see the save button, they think they might need to click it along the way in between moving to the next tiles. And since it's greyed out, they think it might be broken, or don't understand that they need to wait until they are further along.

Describe the solution you'd like
It might makes sense to only show the save button only at the end, and to change it to something like "submit." Or to have an info hover on it that tells one how it works upon mouseover.

Describe alternatives you've considered
No others yet. :)