Yes, please! It is soo helpful and Please integrate Layer transparency sliders for geometrical visibility…
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Here is an Exempel how it Could Look like👀 
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So, @pascal
what do you think. did you give up on this one?
if the layer has nested layers, the indented space takes on the color of the parent. with this way nested layers show color grouping without needing the extra options all you need is one manual color switch.
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Hello - what is giving up? I made a bug track item for the developer, with reference to this thread…
-Pascal
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Awsome, thanks so much Pascal. 
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Hey Pascal,
if its not too much to ask can you please add this image to the youtrack. (i really think its a better solution)
https://mcneel.myjetbrains.com/youtrack/issue/RH-43252
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This would be SOOOO USEFUL.
sorry i had so much work things to do… thank’s for the feedback. the design look’s a little bit overloaded in your screenshot. Keep it more simple… more the together belonging colorfamilys with easy handy smooth icons. When layers are off - they could be colored in grey 
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I was starting my own thread, but then found this one.
How about this approach?
Conditional formatting for the layers dialog. I realize this is super nerdy, but as every year the amount of work that I do in 3D increase, I am finding it increasingly tiresome to scroll through lists of layers. I (of course) already make heavy use of sub-layers, but here are some rules I would use:
-
if _layername starts with “X**” set background_color to grey (only colors individual layer)
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if _top_level_layername starts with “B**” set layer_background_color to “light blue” (would have the effect of coloring all sub-layers with the same background)
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if _layername contains “TODO” set background_color to “red”
you get the idea…
How crazy would that be to implement? Could this be done with a plugin? If we had the ability, via a script, to set the background color of a layer all we would need is a way to register a call-back that runs the rules again once layer-name related event gets triggered and a plugin would be reasonably easy to implement, and it avoids having McNeel set one behavior for all of us - we can customize our own environment…?
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Nice thread, not sure what rhino 8 WIP has currently with this, but what I do is use alt-codes to help visually. ex: ▬Layer Name▬
Some of my favorites:
█ (alt+987)
▬ (alt+22)
• (alt+7)
» (alt+0187)
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I would also very much appreciate this feature, it would be great! As somebody had described, for example if its similar to what adobe has in photoshop… Is it planned to be implemented in rhino 8? Thank you 
Hi Oto -
No, RH-43252 is currently on the “Future” list.
-wim
Thanks for info I and several my colleagues would really appreciate this feature.
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I as well would appreciate such a feature very much! As some have suggested “smarts” could be quite helpful.
For me i’m primarily missing a tool to quickly visually find key layers, to navigate by, while scrolling through various collapsed and expanded layers.
Smarts wouldn’t be too important in that matter, as what i’m missing is a visual aid to quicker let me decipher which key parent layers are collapsed, and which are expanded.
It’s a small but constant nuisance getting “lost” in the layer tab. Good layer management mitigates this a lot, but even at my tightest, after a long day, having to constantly concentrate to visually orient my position in between changing layers for me get’s more tirering than i feel it should.
The layout Yousef.k proposes would help immensely to quiclky and precisely verify what layers you are looking at in the layer “stack” and wether or not they are collapsed. Even if only the the parent layer was colored.
I understand that i could cause unnecessary confusion. But so will layer naming if you don’t do it right. This feature would even work if it only covered the “layer name” cell, as it would serve exaclty the same function as to differentiate between layers in the first place. - Just at a quicker glance.
I’ve requested this as well in the past. I would love to see this in V9.
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Hi, is there any progress on this feature? It would be of a great help working on complex projects with a lot o layers.
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Hi -
RH-43252 is public and you can check the status at any point.
This is currently still on the “Future” list.
-wim
Such an amazing idea. Seems simple, I wonder what makes it so difficult to implement.
If rhino is going to be layer based, having various ways of organizing them seems fairly critical.
Another example of a needed layer management tool would be, when in a specific layout only the layers specific to that layout are shown in the panel.
Also nothing worse than searching for a layer in the search bar and when done it uncolapses all layers.
Mcneel needs to put some serious attention to the layer management if they are to be taken seriously in the architecture world which I know is not their main goal but still.
Hi Willy -
I’ve put that feature request on the list as RH-87602 Layer: Filter Detail and Layout On/Off
What does “and when done” mean?
-wim