[Click] @How to build customized traffic generator using Click@

[shule ney]

Hi all:
I can use kernel click "udpgen.click" to build a constant rate traffic
generator, is there any element (click script)that I can use to build a
customized traffic generator in which the traffic pattern can be assigned by
yourself, like different square wave and its related parameters, or I have
to write a new generator. Thanks very much.