# FIR Filter Builder - Multi-instrument mode
To configure FIR Filter Builder in multi-instrument mode,
- Python/MATLAB clients:
m.set_instrument(<slot>, FIRFilterBuilder), wheremis theMultiInstrumentobject - cURL:
http://<ip>/api/<slot>/firfilter
<slot> is required and depends on the hardware and platform combination. Read more about slots
WARNING
Multi-instrument mode should be enabled before configuring FIR Filter Builder in one of the slots. Read Platform