can a propositus retain animus manendi and and animus revertendi in respect of a place simultaneously?

No, it is not possible for a propositus to retain both animus manendi (intent to stay) and animus revertendi (intent to return) in respect of a place simultaneously. These two intentions are contradictory in nature, as animus manendi implies a desire to remain in a place permanently or for an extended period of time, while animus revertendi implies a desire to eventually return to a different place. Therefore, it is not possible for a propositus to have both intentions at the same time in respect of a single place.