Ability to edit exisiting activity units without deleting and recreating

[ValWood]

It would be useful if we could edit terms in activity units. This does not appear to be possible.
In this example we would want to edit the BP to GO:0030466 silent mating-type cassette heterochromatin formation
(this would happen quite a lot if we used an existing term as a place holder)

Because we cannot edit, we need to delete and re-add ALL of the causal connections. This can be quite time-consuming.

We can work-around by leaving blank unto the correct annotation filters through. However, this must often be a problem when terms need editing due to obsoletions and other GO changes.

CC @PCarme

[vanaukenk]

@ValWood @PCarme
It is possible to edit terms in an annoton on the VPE.
I will show you on Tuesday and we can see how to update the documentation to make this clearer.

[ValWood]

I have been able to add them (i.e. we can create a new annotation), but I haven't been able to import existing annotations when editing. We want to avoid creating new annotations if annotations exist at PomBase.

In theory, I would be happy for us to create non-experimental annotations in Noctua because we don't make these in Canto, the sticking point here is the time lag for annotations to appear in PomBase.

[ValWood]

This might be the same issue
#836

[ValWood]

Also, related, once you have made a MF annotation, you can no longer import BP and CC annotations.
We need to be able to import existing annotations at any point in the curation workflow.