Did the first steps on LRTLapse (against my will because I had to put the data on system disk, does not recognises anything else) and after importing
the corrected images from it I am in LR5, where it says

Step 2: Switch over to Lightroom

Open the folder with your time-lapse images
Go to grid-view (G) and select all the images (Ctrl-A)
Select Metadata -> Read metadata from files from the menu

Can't find Metadata anywhere on the skinny menu. I tried a search on help it does not understand it..
Any hint?
Thanks

Sorry folks, I already could get to the main menu full screen...

Again: the external drives on mac are under "volumes". Just a quick search here in the forum could have helped!