[split] script/plugin to automate arrow with label ??

[trandoductin]

While this one I am going to share isn't GIMP,
but I think it's super-useful for quick labeling so I'll share it here: Number-Label your Image
example below. If it's going to save you time, please let me know as I get kick out of that.
It supports touch-screen as well as mouse and drag-able end points and has many arrowhead options.
Example here uses "Custom Text" label-class, but you can set it as Numbers or Letters so that it does 1,2,3...or A,B,C instead of the names shown in example.

[trandoductin]

Just added ability to add multi-line text (Custom Text).

[trandoductin]

Added Presets, so that for example you can select "Speech Bubble" preset and it'll set arrowhead and label class to make your labels look like Speech Bubble.