Select which ones will be shorthanded.

[no-yan]

Instead of all shorehand being converted, I would like to select which targets are shorthanded. e.g. target:['default', 'all', 'none' , [margin]

[no-yan]

I don't want everything to be shorthand, rather we do want to prevent shorthand and non-shorhand from being used at the same time.

[tarao1006]

I also wish for the same functionality.

In my case, I want to prohibit the use of single-letter properties such as m, h, or so on. For other properties, I would like to use shorthands like mx.

[yukukotani]

@tarao1006 Feel free to send a pull request!

[yukukotani]

If you are not confident, I can review the design before starting implementation