You can by using a small trick. Hide all your slides which you don't want to share and then sync them with SlideLizard (SlideLizard ribbon > Update shared slides). After that make all slides visible again and start the presentation (ignore the warnings that your slides aren't synced). Keep in mind that you'll need to do the same procedure every time you want to update something on your shared slides. Stay tuned for native support in an upcoming version of SlideLizard!