MSI: close Premiere → run installer → restart Premiere.
ZIP: extract and copy com.pushon.trial.motion-layout into:
%APPDATA%\Adobe\CEP\extensions
Follow INSTALL.txt inside the ZIP to enable local extensions if needed.
Open Window → Extensions → Motion Layout Trial.
Windows 64-bit · Premiere Pro 26.3 · 30-day trial from first launch
Unsigned preview. MSI enables local CEP extensions for your account. Choose MSI or ZIP, not both.