No problem. About the save button, there is a save table button, that will do a save. Or ... what kind of save ro you miss?
Save of xml is controlled in the settings. You can choose set autosave to yes, that will save all the changes. If you have autosave turned on, it will popup to save the table, if you have unsaved entries
You can use 'table versions' to check all downloadable versions of a table