I think to open the Glyphs panel in InDesign CC, you might need to go to the Window menu, then Type & Tables, and then select Glyphs? After that, you can probably double-click any character in the panel to insert it into your text. I’m not sure if the recent glyphs automatically show up somewhere, maybe there’s a way to customize that in preferences, but I haven’t found it yet. Hope that helps a bit!