There are several companies that make (wired or wireless) DSLR camera trigger devices with extended possibilities. You could try Micnova, Pixel or JJC. Available for several camera brands (Nikon, Canon, Sony, Olympus...).

I haven't tried any, but maybe someone here has more experience with them.

We do not see things as they are. ǝɹɐ ǝʍ sɐ sƃuıɥʇ ǝǝs ǝʍ