Field help (CBRVTYP) 

This option can be accessed if the field "All types" is not selected. In this case it is used to limit the inquiry depending on the revision type:

SEEINFOFor a selection by object (envelope, budget or budget line), if a multiple revision includes the object revision, the muliple revision is also displayed in the revision list. For instance: For a selection by "Envelope", the multiple revisions concerning an envelope and a budget or an envelope and a budget line are also displayed.