Unless I missed something, it isn't possible to save a curve from the editor then use it in the batch manager. If there is one, it is not obvious (no drag and drop, no buttons)

My use case here is multiple shots taken in a slow train across Italy. The train window was tinted. So I made a curve that reverse the tint to restore the "original" colors (calibrated against white surface). So, unless I manually edit all picture, there seem to be no way to fix all of them at once.

Reproducible: Always

Steps to Reproduce:
1. Create a curve
2. Open the batch manager
3. Select curve
4. Fail to use that curve

Actual Results:  
A new curve is displayed with (no?) way to use the current one or import one

Expected Results:  
A button and drag and drop to import curve and using the "current" curve by default as the editor does.