I am trying to create a custom Commerce price multiplier rule, based off of a content type field, that holds the multiplier value.

I add the "entity has field" condition, from the content type, with the data selector "commerce-line-item" ,but when I go to add the action, with "calculate a value", the custom field isn't in the data selector options. And the "entity is type" doesn't include the content types; just "node"

I know about this, Commerce/Rules - Multiply the price by a custom field value