Easy way to see table metadata in the UI without running .getMeta() manually

[rbasralian]

It would be great if you could see a table's metadata (.getMeta()/.meta_table`) just by clicking around in the UI, e.g. from right-clicking on the column headers or from the "Table Options" menu on the right side. It'd be helpful for quickly understanding the available columns in a wide table.

[mofojed]

Needs spec an JS API support.