It may be useful to indent within lists.
Unfortunately, FrameMaker does not provide any way to control the indenting of tables other than by setting a left indent value for all tables of a particular format. While you could have a special format for tables in lists, this may quickly become unreasonable to manage.
DITA-FMx provides an option (in the Authoring Options dialog), to automatically set the left indent for tables, based on the Left Indent property of the parent element’s paragraph tag. When a table is used in a standard list, the parent element will be the li element.
The indent is applied on file save (as well as on file open). After inserting a table in a list, save the document and the table will be indented to match the parent.