[FR] Allow ThreadRange Multiplier to be different from Arg Ranges one

**Is your feature request related to a problem? Please describe.**
Once a RangeMultiplier is set, the threadrange also uses the exact same one, it would be easier if one could either set a ThreadRangeMultiplier or a multiplier argument to `ThreadRange(min,max,multiplier)`

**Describe the solution you'd like**
A simple solution could be accepting a multiplier argument to the the `ThreadRange` arguments which can be used in case you'd need a customization on ThreadRange different from `RangeMultiplier`

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
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