LX7 -Star trails

Hi

Just got a new LX7 and I am so far happy with it, but I couldn't find a setup for star trails, I am supposed to go to manual mode, but I a bit confused, this model has "Manual Exposure" and "Program AE", but none of the options available on those modes are showing anything about setting up the shutter mode to select continuous mode and time of exposure, I read the manual but couldn't find anything, I am following this steps:

Shutter Speed, aperture and ISO:

• Keep your shutter speed at 30 seconds,
• Set your camera’s aperture to the widest setting. An aperture of 3.5 or 4.0 is good enough.
• Set your ISO at 1600 and take a test shot, then zoom in and check if the stars are sharp. If not, re-adjust the focus and keep taking test shots until the stars appear sharp.
• Set the shutter for continuous shooting (where you just hold the shutter down and click – It may feel a bit odd with a 30 seconds exposure, but it works great).

I am missing something?, the last steps is the one is where I am stuck, unless this model does not have the capability, for this type of shooting, I may have to return it

Any advice would be welcome

Robin