Inline column editor for Database table editor

**Is your feature request related to a problem? Please describe.**

It is a bit annoying to have to go to "add column", click and bring up a column editor when the temptation is to just double click and add/edit columns.

**Describe the solution you'd like**
As stated above, would like to be able to have inline editor be available for adding/editing columns by double-clicking on column "line"