**Describe the bug** Currently some runtime/search parameters are hard coded **Expected behavior** Add ability for user to modify/set parameters needed for different indices **Additional context** Currently, some parameters are already exposed for Flinng: 
Describe the bug
Currently some runtime/search parameters are hard coded
Expected behavior
Add ability for user to modify/set parameters needed for different indices
Additional context

Currently, some parameters are already exposed for Flinng: