[ts-gen] Controlling shim parameters (key-value pairs)

[Ken Feng]

I have two questions about controlling shim parameters.

1. I know about .shimrc - is there a way to tell shim to use a
different .shimrc upon start-up on the command line?

2. Is there a way to override a specific parameter on shim startup?
For example, I want to pick a ShimText based on yyyymmdd upon startup
from a Ruby file.

Thx in advance.

- Ken