Add bindings for hide/show current cursor column in columns sheet.

[blais]

Minor change adding a way to toggle to show a single column in the Columns metasheet.
I'm finding myself a bit annoyed having to (gv) show all and then rehide some of the columns.

(Feel free to change the binding overrides to be more in line with the holistic choices across the tool.
Thank you for this wonderful tool! :-) )

[CLAassistant]

All committers have signed the CLA.

[saulpw]

Thanks for putting together this contribution, @blais! I'd like to know more about when you have this issue, and to think about other possible solutions.

First off, did you know that you can edit the column width on the Columns Sheet to do the same? It's a few extra keystrokes, which is annoying, but consistent with how VisiData works already. And also, did you know that if you hide a column accidentally, you can use Shift+U to undo the hiding without going to the Columns Sheet?

I'm open to some of what you propose here. Particularly since using aggregators makes little sense on the Columns Sheet, so rebinding + shouldn't be a problem. But I'm worried that it might be confusing, since that binding doesn't work like that in any other area of the program. Also, if we change the - keybinding on the Columns Sheet to hide/show on the source sheet, should other column-oriented commands, like _ for column resizing and # to type as integer, work the same way?

[saulpw]

Well, @blais, your PR caused me to think about the problem of unhiding hidden columns, and I wound up implementing something (just pushed) that I hope will make it easier in general. Thank you so much for your PR; I'm going to close it for now, and if you have other ideas I would love if you opened another PR or issue.

[blais]

Thank you Saul, much appreciated, I'll definitely update and check it out. (Definitely more ideas for more PRs.)

…

On Fri, May 24, 2024, 01:03 Saul Pwanson ***@***.***> wrote: Well, @blais <https://github.com/blais>, your PR caused me to think about the problem of unhiding hidden columns, and I wound up implementing something (just pushed) that I hope will make it easier in general. Thank you so much for your PR; I'm going to close it for now, and if you have other ideas I would love if you opened another PR or issue. — Reply to this email directly, view it on GitHub <#2394 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AACSBEYWMXWGITJXL74D6Y3ZD3C2LAVCNFSM6AAAAABG5ILYPWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMRYGUZDKNRWG4> . You are receiving this because you were mentioned.Message ID: ***@***.***>