Yes, you can. But only some of our indicators written for regular TOS will function in TOS web or mobile versions, and there may be differences between the full and mobile platforms.
Follow the instructions under "Can I add studies?" on the thinkorswim mobile FAQ to see how to add and remove studies on the mobile chart. You can find our studies under the "User Defined" section, near the bottom of the list of studies.
Note that not all of our indicators will function properly on the mobile platform, but we do know that several appear to work correctly, such as MQ Momentum, but please use them with caution and at your own risk, as Base Camp Trading indicators are designed to run on the full TOS platform.