You should probably take a look at Multichain's getting started page.
Basically, you need to first create an asset:
issue myaddress myasset 1000 0.01
With myaddress being the address on which you want to issue the funds, myasset being the name of the asset you want to create, 1000 being the quantity and 0.01 being the smallest unit you can have of this asset.
Then on the instance which has this first address, you can use sendasset :
sendasset secondAddress myasset 100
Hope this helps !