User functions

Function	Description
User.setProp(name, value)	Set property with name for user. Name is case sensitive. Read more User.setProp("city", "London") You can pass type also: User.setProp(name, value, type) Type can be: integer, float, string, text, json, datetime
User.getProp(name)	Read property with name. Name is case sensitive. Read more User.getProp("city") can get property with default value for non exist property: User.getProp("city", "London") can get property of another bot: Bot.getProp({ name: "propName", other_bot_id: OTHER_BOT_ID })
User.deleteProp(name)	Delete prop by name
User.addToGroup(group_name)	Add user to group with group_name User.addToGroup("guests")
User.getGroup()	Get current user's group
User.removeGroup()	Remove user from current group

Access to property in answer:

You can also use the properties in the command's answer. For example, you can do this with the / hello command:Hello, <UserRole>!

in BJS:

And you can use it in Bot.sendMessage("Hello, <UserRole>")