How do you set up custom location for media bay?

My first time trying cubase for first time yesterday (Brought cubase 9 Pro) as getting sick of other Daws being unstable. Anyway in most daws i’ve used theres a browser to get all the sounds as i do not wish to keep on going menu and import sounds on cubase. There’s media bay, but i’ve tried going on my desktop from it and dosen’t show up any folders, or local hard drive (my sample packs are stored in different hardrive. Is there a way round this? Also instead of me going to top of the ruler to change position to play at different part, is there settings where i can just place my mouse over a blank part of the editor to change the position? Studio one has it.