Hi John! Thank you for reaching out! We currently enable this for enterprise users as a feature called create your own recipes. This enables you to save a group of columns and add them to multiple tables.
I just enabled this feature in your workspace for the next two weeks so you can give it a try- let us know what you think! Also, on the explorer tier you can also create template tables and duplicate these template tables. This will automatically copy over the column set up in your table.