Use hunks from both 1 and 2

[Blasz]

I'm able to select a hunk for a conflict from either 1 or 2 but can't seem to add both files' hunks to the result file.
Is this possible?

[roqvist]

It is not possible to do automatically. You'd have to copy/paste the values manually.

I've been looking into this as well, would be really useful to be able to type like this:
-U+1

which would append the content of buffer 1 to the current result file.

So you could do stuff like:
-U1
-U+2

to first take the change from 1 and then append the change from 2.

Unfortunately vimdiff, which splice.vim uses under the hood, only has two basic commands; diffget and diffput, both of which simply replaces the current conflict with a given value. Anything more complex, such as taking from first and then appending from second, requires manual copy/pasting.

Identifying the current conflict and appending it's value to the result buffer is certainly doable but not through existing vimdiff commands.

[clawoflight]

Would love this as well, +1!

[errael]

The latest release of the pure vim9script port of splice, https://github.com/errael/splice9/releases/tag/v1.0.0-beta2, supports this feature.