I do like to quickly see just layers without objects. There is an option for that in 2018 and has been for many versions, called Current Page Layers Only. This doesn't exist in 2020 (probably 2019 as well but who can check, I certainly can't as its banished)
However if you hover over the layer dropdown arrows used to display or hide objects a tooltip pops up to say Ctrl-Click to collapse all. Great thats what I needed.
Doesn't work. Grrr.
This is easily done in 2019 or 2020. Using the search field in the Objects docker, type 'layer'. Only items named layer will appear and everything else will be filtered out. You will also see the pages they are on. If you only want to see the active page, switch to the 'View Layers and Objects' mode. You will only see layers for the active page.
Keep in mind that multi-select works with toggling layer states on a single page so if you want to hide or lock all layers on Page One after you have filtered, select them all and toggle show or lock (or print or change layer color, they all work).
The ctrl+click toggle collapses or expands any child containers of a parent. So if you have 20 layers all expanded, ctrl+click once on the arrow for the page they are on, and expand the page by clicking the arrow a second time (without ctrl+click), all layers, groups, etc... will be collapsed. It's a quick way to expand or collapse all nested containers.
Nico, that solution isn't really acceptable. It used to be one click. Then it became 1 click followed by another click from a menu of two items (stupid change IMO)
Now its 1 click, followed by type 5 letters and hit enter. This is progress?
Now regarding your multi-layer toggle, thats the wrong scenario. How would I turn off all Layer 1's on pages 1-30?
Nicole do you not hear yourself?
I have to dance naked in the moon wearing a feather hat, drink go juice and spin counter clockwise 3 times to make something work that used to be simple!
What are you guys trying to do? You do realize that college kids with useless graphic degrees will laugh at this.