I love how the workflow is fluid with hotkeys.
As commented in Youtube I would like to suggest a way to set keyframes to all meshes or attachments just like the buttons in the translation painel.
My projects have some attachment that change depending to the pose or animation for example 5 faces, 3 right arm, 2 hands...
I have to seek between 20+ bones and click one by one to set the first attachment every time I make a new animation.
Even for attachments that doesn't change because you'll get issues at runtime when change one animation to another.