Datafiles instead of P_ntone in ADS?

Hello,

I have a large txt file and would like to use it as a power source instead of P_nTone. It is structured as follows:

1 MHz  8 dBm

2 MHz  0 dBm

3 MHz  -10 dBm

4 MHz  7 dBm

...

..

.

Is it possible? How can I do that? Or do I have to use P_nTone and type in everything?

Thanks a lot!