I used this video as a basis for how to do this, but changed things a little. If you're not sure of anything refer to this great little tutorial video or post here I'll do my best:
https://www.youtube.com/watch?v=LuW_Irtu2fYHere are all the files you will need including the clay icons:
1. Place all the attached files in your Luxology-->Scripts folder
2. Open form editor and create a new group if you don't already have one. I called it 'My Custom Buttons'
3. Double click on 'new form' and name it 'Clay'. On the right pane, change Layout type to 'Toolbar (Horizontal)', Icon Mode to 'Icon Only' and the word 'Clay' in the Tooltip box. Should look like this:
4. Under the Clay form click (new control)-->Add Command. Enter "@OctaneClayOn.LXM". This is the full name (including suffix) of the script I supplied with @ in front of it.
5. On the right pane, enter 'Clay' in the label and Tooltip boxes, then under 'Custom Icon' load in the icon supplied in my zip file which should now be in your Luxology-->Scripts folder. Should look like this:
6. Highlight the Octane Toolbar form. Do this by clicking 'Find Form' button in the form editor (top left), then select the octane toolbar.
7. Drag and drop your Clay 'Control' (NOT THE FORM, the
control with the small green line icon) to the end of the octane toolbar control list. I placed it after 'Show Setup Window'. Should look like this:
8. Go back up to the Clay form you created under 'My Custom Buttons', right click and save ot to your Luxology-->Configs folder. I called this Clay.CFG.
You should now see the clay button on the right side of the octane toolbar.
Repeat for the other 2 Clay buttons: Coloured Clay and Clay Off.
So what happens after a reinstall or plugin update? I'd assume the 3x clay controls would need to be moved back to the end of the octane toolbar controls list.
EDIT: After installing the current v4 plugin, these clay buttons are uneffected by the update.