Photoshop: Custom Guides (groupable, colorable, nameable guides)

»llustrator has manageable guides- why can't Photoshop? «
When comparing pixel and vector oriented applications one is likely to observe differences.
And in Illustrator at least one bug has been maintained for roughly 10 years – so it’s fine with me if the Photoshop team does not emulate everything going on at the Illustrator team.

Christoph- um, what? This thread, and the statement you quoted, are about guides. You seem to have missed the point.

The 10-year-Illustrator-bug is indeed not relevant to the topic of this thread but the question
»llustrator has manageable guides- why can't Photoshop?«
does imply a comparison between a vector- and a pixel-oriented application and that those will exhibit inherent differences seemed worth pointing out.

»When an aeroplane does have an altimeter why doesn’t my car?«

Its probably worth checking out Paul Riggott’s Script for Guide Sets here
https://forums.adobe.com/thread/93283...
and maybe this JavaScript could help:

// take guides from active document and add them to other open documents after removing their existing guides;
// 2013, use at your own risk;
#target photoshop
if (app.documents.length > 0 && app.activeDocument.guides.length > 0) {main()};
////// function //////
function main () {
// set to pixels;
var myDocument = app.activeDocument;
var originalRulerUnits = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
// collect guides;
var theArray = new Array;
for (var m = 0; m < myDocument.guides.length; m++) {
theArray.push([myDocument.guides[m].coordinate, myDocument.guides[m].direction])
};
app.preferences.rulerUnits = originalRulerUnits;
// get all open documents;
var theDocs = app.documents;
for (var o = 0; o < app.documents.length; o++) {
var thisDocument = app.documents[o];
// proceed if not original document;
if (thisDocument != myDocument) {
app.activeDocument = thisDocument;
var originalRulerUnits = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
// remove existing guides;
for (var n = thisDocument.guides.length-1; n >=0; n--) {
thisDocument.guides[n].remove()
};
// add guides;
for (var p = 0; p < theArray.length; p++) {
thisDocument.guides.add(theArray[p][1], theArray[p][0]);
};
app.preferences.rulerUnits = originalRulerUnits;
};
};
};