Allow <TAB> to cycle through options instead of select

[coxley]

I'd love to move over to mcfly from fzf, but the keyboard shortcuts are doing me in. I don't have arrow keys that are ergonomically accessible, so is much preferred.

To make this possible, we'd probably need config options for the main actions. Such as changing what does. (I'd prefer that to do what does today)

[cdesch]

+1 for this. binding the other keys to F1, F2, etc conflict with Tilda.

the ability to configure these in a .dotfile would be nice

[JamJar00]

Not related to the actual topic of the issue, but perhaps it helps you personally. If you're used to vim you can make mcfly use j and k to move through the different elements with the vim key scheme (it does change some other things though)

Having inaccessible arrow keys feels like it should be a reasonably common issue so maybe this would best be addressed with a third key scheme designed with that in mind?

[cantino]

Now that a config is merged in (#405), I'd be open to a PR to change this.