Can I automate SplitView unattended installation with SMS or Marimba?

Yes, SplitView installation can be automated using SMS or Marimba.

SplitView installer accepts installation parameters and the license registration can be automated. The SplitView settings can be tweaked from HKLM\Software\SplitView and HKCU\Software\SplitView to provide full control of configuring SplitView during installation.