i would like to ask about my maxsurf, why when i am design, there are no parametric transformation for entire the lcb,cb,cp?
since it is a new major version (v20 to v23) update you can have both versions installed side by side; for minor updates, the old installation will be overwritten. Updates are available from Software Downloads (bentley.com) but you need a current subscription - Licensing and Subscriptions | Bentley Systems or Buy MAXSURF: Marine Vessel Analysis & Design Software | Virtuosity (bentley.com)
how to update? will the maxsurf file before the update disappear after the update?
the latest version is 23.05 that one is several years old and no longer supported
maybe you have multiple versions installed? please check in the control panel and send a screen shot