Best methods for managing changing spritesheets during prototyping phase?

I’m prototyping a game.

My spritesheets are changing daily as I add sprites or modify existing sprites to support new play features.

I’d rather have my spritesheets append new sprites to the end of the sheet instead of changing the order of sprites completely, as the level editing tool I’m using does not like existing sprite entries to change order (Level Director X).

I’ve been informed that using Texture Packer’s BASIC algorithm with sort by NAME and sort order ASCENDING will allow me to add new sprites to the end of the sheet, preserving the existing order of my sprites (…assuming I don’t delete sprites without putting dummy assets in their place, I guess).

Does anyone have experience with this type of procedure?  Any thoughts/caveats I should be aware of?

Anyone doing this with Shoebox instead of Texture Packer?  Any automated tools out there to help with this?

Thanks!