Here you can determine how and what colors Octane Scatter will display clone objects in the viewport. Let's look at the options now:
Here you can set the appearance of clone / instance objects. Choose one according to your working style.
From here you can change the frequency of clone/instance visibility. In some cases you may not see detail in the viewport when there are too many Clones. Use this option in such cases. Do not forget to do 100% again before making the final render.
From here you can set which colors the clone/instance objects will be.