NIST 800-53 - more granular mapping on control enhancement level

[balage-n]

Regarding NIST 800-53 in OpenCRE I noticed that the mapping is created only on the control level so it does not include control enhancements e.g., AC-2 is linked to 724-770 but AC-2(5) "Inactivity logout" is not linked to any other though it could be linked to 065-782 "Ensure session timeout (soft/hard)".
Is there a plan to create a NIST 800-53 mapping at this level in the future, or would you be open to contributions regarding this granularity? I mean it's surely more maintenance and in general mapping at the right abstraction layer between different frameworks is not a trivial question but I think it would make sense to match up sub-controls/control enhancements this way due to the fact that NIST 800-53 is a widely used framework.