To connect 2 hands (or better to say: 1 figure to another) just follow this (but I'm SURE 99% that the result is not going to be what you want, but it makes "parenting" possible):

short way:

1. position both figures as you like,
2. select Figure you want to be conected (ie. Fig 2),
3. in menu find: Figure>Set Figure Parent...
4. now find a "Body Part" of the Fig 1 to which Fig 2 must be connected (ie. "Right Hand")
5. select OK, it's done

Longer way:

1. position both figures as you like,
2. select Figure you want to be conected (ie. Fig 2),
3. choose "Body" for that Fig (press 2 (two) on keyboard),
   4. in menu find: Object>Change Parent...
4. now find a "Body Part" of the Fig 1 to which Fig 2 must be connected (ie. "Right Hand")
5. selekt OK, and it's done

Now Fig 1 is controling Fig 2. But as I said at the beginning: don't expect too much from such parenting:)

To disconnect it follow abowe steps but in step 4 (or 5 in second case) choose UNIVERSE