Which controller do you have? Different answer for an HH530 than for a siemans, say.
I don't know if DMU 50s were shipped as 3 + 2 manual, 3 + 2 automatic but not simultaneous, or 5 way simultaneous. (The DMG option book seems to have infinite length.)
Just saw your other post - on a Siemans, I can't say much.
This website or its third-party tools process personal data (e.g. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. To learn more, please refer to the cookie policy. In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise.