I'm mainly building synth stuff (a modular synth) and mixing gear like compressors or EQs if you know what I mean. A volt meter by utilizing the LM3914 would come in handy for my modular to control voltages.
By the way: I'm barely able to understand schematics. I just recognize basics like voltage dividers and opamp buffers.
Welcome to the forum!
The site had a hard disk crash a couple of months ago and many images were lost.
Check out the datasheet for the LM3914. It shows how to cascade the ICs.
I have not finished any of them yet. It's 2 GSSL's with Super Sidechain and Turbo board, 1 dual LA2A and 2 Forssell Opto Compressors. One GSSL is close to completion but I need to get the right secondary fuses at first.