Please log in to Act! for Web at first.
In comparison to the Windows version the TABLE|IT Table Manager is currently not available for the Web version.
That means that creating and editing tables and/or fields is not possible in TABLE|IT for Web at the moment.
Please create new tables or fields in the TABLE|IT Windows version at first and also include them in your layout.
Tables that you already created and included in your layout can be found in the tab you created for your table in the Web version, as well:
Above your table you can see a tool bar, just like in the Windows version.
Please note: It is possible to adjust the column width for each individual field type (character, phone, etc.) for TABLE|IT for Web. If you want to change these settings you have to be really careful when following the instructions. Only an Act! administrator should make these adjustments.