the MX890 can do pretty much whatever you want it to do.  it has the capability of using variables and has some default jump options, including a navigate back option, which will take you to the last page you were on.

keep in mind though, that the MX890 is programmed using the Complete Control Program, unlike the MX450 which gets programmed using buttons on the remote.  You will need to find a dealer that is willing to provide this software to you.  The remote does not come with software, and end users cannot access the software on URC's website.