To send coins between wallets you should run webchain in console mode like this:
webchaind.exe console (on windows)
webchaind console (on linux)

then use command in console:

personal.unlockAccount(WALLET)
where WALLET - is your webchain wallet number. You will be prompted for password from wallet

and send coins to other wallet by command:
webchain.sendTransaction({from:'WALLET1', to:'WALLET2', value: web3.toWei(0.05, "ether"), gas:21000});

where WALLET1 - Your wallet, WALLET2 - wallet of recipient , 0.05 is amount you want to send in WEBs (0.05 WEB here for example)

To see your wallet number in console run command
webchain.coinbase

It will show your main wallet in webchain

If you have multiply wallets you can see them all by run webchaind as below:
webchaind account list

You will see all wallets list