This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of helm.

"The artistic directors' game of musical chairs continues: following the departure of Michael Grandage from the Donmar, his replacement and protege, Josie Rourke, helms her final production at the Bush Theatre."