Can I Read How Many Amps Are Being Used W/ A Multimeter?

Thanks a lot for all the replies, I've definitely learned a lot from this post. I ended up using the meter I have and disconnecting the battery cable and putting the meter in series with it. Out of the 42 lights, I have 11 switches so I was able to work up to the lights I was worried would be over 10 amps. As long as I didn't turn on more than one switch at a time I never hit the 10 amps. Thank you again.