  We briefly introduce new multiloop capabilities of the Mathematica package
FeynCalc 10 and a collection of interfaces connecting FeynCalc to such popular
tools as QGRAF, Fiesta, pySecDec, LoopTools, KIRA, FIRE or Fermat. In addition
to that, we showcase the application of these codes to the ongoing study of the
soft-overlap contribution to $B_c \to \eta_c$ transition form factors at large
hadronic recoil.
