When the point is in a table (org#Tables) the following sections are displayed in casual-org-tmenu:
Miscellaneous table-related commands.
Table-specific editing commands.
Region-specific editing commands.
Table-specific compute commands.
Table-specific display commands.
If the point is on a TBLFM keyword (org#Field and range formulas), then the following menu variant of casual-org-tmenu is shown.
From the Table section in casual-org-tmenu, selecting “l Layout” will raise the table layout menu (casual-org-table-structure-tmenu). Use this menu to make structural edits to the table.
When editing formulas for a table, the menu casual-org-table-fedit-tmenu can be raised to provide assistance with table references.