Update one or more fields in the already-open Market Cap Calculator.
ALWAYS call mg_calculator_market_cap_state first — the user may have
changed values manually in the GUI and you must not overwrite them.
Pass the version you received from that call (or from the open tool
if updating immediately after opening). Only pass the fields the
user explicitly asked to change; omit all others. Send all changes
in a single call — multiple sequential calls lose intermediate
updates (only the last one applies).
Connector