FEM CompEmConstraints

Description
FEM CompEmConstraints is an icon button in the FEM Constraints toolbar that groups electromagnetic constraints. Click on the down arrow to its right to expand the icons below it and select a tool.

Constraints
You can choose these constraints:
 * [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] Constraint electrostatic potential: Used to define electrostatic potential.
 * [[Image:FEM_ConstraintCurrentDensity.svg|24px]] Constraint current density: Used to define a current density.
 * [[Image:FEM_ConstraintMagnetization.svg|24px]] Constraint magnetization: Used to define a magnetization.