[Feature/Bug] No `/res contract` Command?

[clucky]

A couple days ago I was digging through a couple of the /res select subcommands, and I noticed that, although there is a /res select expand command, there is no /res select contract command, which I feel should be something which Residence contains.

In a brief summary, the way /res select contract <amount> would work is the player would look in the direction that they would like to contract towards themselves (ie. if you want to shorten the height from the upwards direction, you would look upwards), and type /res select contract <amount>, amount being the number of blocks/meters that they want to contract.

When a selection plugin has an expansion command, it would only make sense that it also have a way to undo the expansion, or in other words, a contraction command. Otherwise, if the contraction command were not featured, the player would have to start over with their selection process to undo an accidental expansion.