I can't find if there is a dynamic way to put the rigname in password field.
Any kind of substitution tags for custom pools ?
I think what he asks is this.
Click on the right button above the rig and choose the last option called "propierties", on that screen you add the name of your miner. If you specify it, it will be automatically installed wallet.miner
I'm asking if there are replacement tags in pool property "password".