Hi.
It may be boring to you guys but I really need help.
I bought some extentions just before I updated SketchUp to 2017. Those are: Instant Walls, Instant Roads, Chris Fullman Tools, Extrusion Tools, Profile Builder and so on. Some of them were free, I know but it is not important.
After I updated my Sketchup the extensions are not present when I open a file. More, some have annotation "unsigned".

I would appreciate advice. How do I get the extensions that I purchased or downloaded, to work on the updated version for SketchUp. At the moment I am working on 2016, but I know that the licence will expire soon.

Much appreciate your help.
Marzenna

Thank you very much pbacot.
It looks like I was doing half way right. I moved everything on the layer0, created a group but did not moved it to its own layer. You saved me another long day of despair...lol

Hello. I try very hard to be better on SketchUp. As I learn on my own and previously used AutoCad, my old drawings are drawn using layers rather the Outliner. In various books it is recommended to move everything onto layer0. Unfortunately when I did that, the hidden geometry pops always when I turn that layer even if the group is off in the Outliner. Is that correct? It is obstructing my visibility of object that I want to work on. Is there any way to bound the hidden geometry to a group I turned off?
Thank you for your help.