Is there a way to compel one or both parents to a psych evaluation in CA family/divorce court

the ex wife is on her third attorney, has represented herself for a spell. she walked out of the family home in summer of 2006, and began filing motions. she is about to be labeled a vexatious litigant, losing a number of motions, including joinders of personal finances and business accounts. now she is seeking full custody of the two children, yet has demonstrated a pattern of indifference and bordering neglect towards them. the custody ploy is merely an attempt to seek more cash in a settlement agreement. looking at past patterns of behavior, independent people have repeatedly commented on how sick she seems. can we compel this psych evaluation? - Is this your question? Add additional information