Schematic to layout in ADS

`Greetings Sir,
i have designed a dual band LNA in ADS schematic and got the output.
for fabricating i must design the LNA in Layout.
I am not able to design the layout.
please help me with the steps to create layout in ADS.....

did you try "generate/update layout" under the menu called "layout" ?

Yes sir
i tried it...but couldnt get the same result as in schematic....
in schematic i got gain of about 16 dB...but in layout ,if i simulate i get -50db gain(loss).....

Did you simulate your layout ? The components that yo have placed are realistic ? Is there any short circuit/open circuit ?
You can not simulate your circuit in layout environment, instead you should transfer your layout with modelled component into schematic view..
Read user manual of ADS and open some examples in it...