It is normal for Helleborus to droop after replanting, especially if the roots were disturbed (they hate that)!
Don't overwater them, they also dislike soggy soil, so much so, that they may reward you, by dying. Add water only when the top 2-3 inches (5-7.6 cm) of the soil becomes dry.
Also insure that the planting area is well drained.

If you can, place them where they receive a few hours of morning sun or in dappled shade throughout the day. Placement under trees with a tall canopy will also work, where they receive bright indirect light.

To trim or not? I personally would leave them alone.
They will usually recover on their own, but may require several days or even a few weeks. As long as new growth is appearing, have no worries. After the new foliage appears, the old foliage can be removed to enhance their appearance. Any green foliage, whether droopy or not, is helping the plant by producing energy through photosynthesis.
Good luck!
Rb

In the PNW, it's very difficult to place hellebores anywhere where they get too much sun :-) I have many different ones growing in virtually full sun locations and all do fine. Because of our location, sun here - even full summer sun - is very weak compared to most other parts of the country. And hellebores are really very sun tolerant.....much more so than many suspect.

Otherwise, I agree with Rb :-) FWIW, Helleborus x hybridus are not ideally suited for long term container culture. While you can grow them in containers, they seem to struggle and will be much happier if planted in the ground. For one, I think most commercial container potting soils are not well-suited to their growth. I would pick one that was formulated for woody plants and with a coarser texture. Or make up my own.

Also, I wonder if having them indoors may have affected their growth somewhat - excess warmth at this time of year can cause elongated, floppy growth. These are perfectly hardy here and do not need to be kept indoors even in the dead of winter.

Thank you so much for the tips! I've moved them to a shadier area that still receives light and only mist the leaves in the evening. I haven't watered them as the soil isn't dry.

If the smallest and droppiest of the 3 droops away, is there still a chance for the roots to survive and start to produce growth again? The leaves are droopy and starting to strivel. Cheers