Turn paths into guides with the right click menu "Make guides" like in Illustrator.
Pretty self explanatory. It's very useful for example if you need a marquee or an odd shape to serve you as a guide and most importantly, the snapping in InDesign between a line and a guide is so different and so hard to snap to a path.

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Stephen Hollister commented
I second this!
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Balint Honvari commented
It would be a useful feature!
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Karen Burns commented
Would be very useful if we had "convert shape to guides" feature in InDesign. Is there anyone out there monitoring this Features request page, that can respond?
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Anonymous commented
Did this ever get fixed? Love to have this feature in InDesign would be so helpful like the right click in Illustrator.
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Chelsea commented
Omar - thanks for the Add Guides script info. Helps a lot.
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Kevin Castro commented
please please please this would be so useful
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Omar commented
You can do this somehow by going to Window>Utilities>Scripts
And when on the scripts panel, Application>Samples>AppleScript and double click on AddGuides -
Anonymous commented
Yes, we need this feature
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Anssi K commented
I need this. I need easy and fast made custom made guides in Illustrator from simple rectangle shapes, and I need this in InDesign. Why it's still — after years — not available on InDesign?
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Anonymous commented
Second this
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Mat Watkins commented
Are we any closer to this feature? Surely Adobe listens to its valued customers and users?
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Joshua Paul Gaces commented
Yes please.
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LRSmith commented
Yes, please. In fact, I wish InDesign and Illustrator could be combined into one Super app. I keep going back and forth landing on one of them to finish my layouts.
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Taylor commented
I've decided that I can just create a bounding box, or a shape, and click "Lock", but it won't have snap-to functionality.
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Mohammed Abdul Mogwembe commented
Please oh please!
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Deepak commented
yes, I vote
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Anonymous commented
I vote for this STILL 2 years later!
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d commented
Yes please!
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Vishu Aggarwal commented
Add the feature...like we can align to guides in the illustrator, but same can't be achieved in Indesign
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nicky commented
Ability to convert tracks to GUIDE as already happens in Illustrator. Function that is missing and in my opinion very useful to determine reference guides with traced shape, oblique etc ... evaluate this proposal.