I just came across this thread in late October 2025. Here’s how you can make sure you always have access to your expression maps (EMs) in all future projects. It does take a little bit of work depending on how many maps you have, and want to include in future projects. Once you set this up, you can import these into any project, new or existing (old).
How Cubase/Nuendo handles expression maps: They arent standalone. They are part of the track archive definitions (xml) for an instrument. They appear under the PInstrumentMap xml block, or PIM. This PIM will contain all the data for the EM but it is specific to that particular instrument or midi track.
So when you load an expression map, its sitting there waiting to be assigned to something. If its not assigned to any virtual instrument or midi track, and you export your track archive, it wont be included. If you load it up again in a new project, you’ll see that your expression map is not there. Thats what people arent happy about, as far as I can gather, in this thread. And yeah that behavior kinda sucks tbh, but its the way the track archive works. Its meant to be a standalone archive and by rights it really should include EM definitions for future use but it doesnt.
UNLESS … you assign every single expression map to a track. Then, when you save it, that track includes the definition and it will be imported to a project, old or new, and be available to every other track in that project.
So how do you make sure you can import every one of the EMs into a project? You need to create a new fresh project and add as many midi tracks as you have EM templates. It doesnt matter what the tracka are called, they are simply going to act as beasts of burden, to attach your individual EMs to. One midi track → one EM. They need to be assigned with the drop down in Cubase. So its tedious (especially if you have hundred or thousands of expression maps - god forbid) but if you do this, and then select all your tracks and save as a track archive (and name it ‘all-expression-maps.xml) …
The next time yoou need to import your EMs you just need to load up this file via File > Import > Track Archive and it wil be added to your project. You can hide all the midi tracks because they are not needed and will just clutter up your workspace. The EMs are now available for selection on any of your tracks. Yes, you do need to then go through anmd assign them, but at least theres a fast bulk import method with this strategy.
Try it and see. Its a workaround but it works.
If you start from an empty Cubase project, and youve previously saved all your EMs (assigned to instrument/midi tracks or not) they will be there )good news!). Thats another way you can do it. If you want to merge two projects or start from the one that has all the EMs saved in it. But if youre using track archives the above method will do the trick.
An aside: Why use track archives instead of just saving Cubase projects?
Well to my mind, you can save different track configurations and load them into your projects piecemeal, which is good if you like to create different templates based on existing project layouts. Anyone else see a benefit in using track archives instead of merging stuff our of one project into another?