IndicesListTo50

This is the least glamorous node in the pack and honestly one of the most useful. IndicesListTo50 takes a Python list of integers - the kind of thing ImageListSampler in the same pack emits - and splits it into 50 individual INT outputs, padding with zeros if the list is shorter. Why would anyone want that? Because a bunch of ComfyUI nodes expose 50 separate widgets you have to fill by hand (the LTX family's sequencer-style nodes are the classic case), and if you right-click such a node and "Convert Widget to Input," each widget becomes a socket. This node is the bridge: list in, 50 wires out, no manual typing.

The source docstring puts it plainly: it's built to drive nodes with 50 individual widgets "like LTXSequencer." If you've fought with multi-keyframe LTX workflows - setting frame 1, frame 2, ... frame N by hand every single run - you know exactly what this solves. It's the plumbing that makes the keyframe workflow repeatable instead of a chore.

How it works

The node is declared with INPUT_IS_LIST = True, so the single indices input receives a whole list at once rather than one value. Its split() function flattens the input (handling the nested-list edge case where each item is itself a list), takes the first 50 values, and pads the result with 0s to exactly 50 entries. Then it returns 50 separate INT sockets, named index_1 through index_50, in order.

That padding matters: it means the downstream node always gets all 50 inputs even when your list has only, say, 12 keyframes. The unwired tail just reads 0, which for frame-index purposes usually means "first frame" - so keep that in mind if your workflow is sensitive to it.

Inputs and outputs

• indices (INT, list) - the list to split.
• Outputs: index_1 … index_50, all INT.

To actually use it: run ImageListSampler (or anything that outputs an index list), wire it here, then right-click your 50-widget target node → "Convert Widget to Input" and connect the sockets one-to-one. The ordering is preserved, so index_n maps to the widget's Nth slot.

Install

ComfyUI Manager → search AnotherUtils, or:

cd ComfyUI/custom_nodes
git clone https://github.com/marcoc2/ComfyUI-AnotherUtils.git

Restart ComfyUI. No dependencies at all - this is pure list shuffling.

Common issues

Two things bite people. First, if you don't see 50 sockets on the target node, you haven't converted its widgets to inputs - the "Convert Widget to Input" right-click step is mandatory, and it's easy to miss. Second, empty or over-long lists: an empty list returns all zeros, and anything past 50 entries is silently truncated, so if your keyframe count exceeds 50 the extra indices just vanish. That's an edge case, not a bug, but it's worth knowing before you build a 60-keyframe sequence on top of it.