I would be interested in knowing your source of information, primarily because of the use of the word 'order' which is not really accurate.
Aside from that, there is not really any specific "Order Of Bodhisattvas", so I am interested to know if this is your own way of expressing the Mahayana concept, or if this was from a questionable source. Whenever I hear the prase "The Order of...." it reminds me of secret societies and fraternal lodges.
The word "order" is used in english e.g. as a religious order, a monastic order, a sufi order, etc... This is one of the many meanings of the word order
. What I mean is that there was, or there is, an organisation of bodhisattvas that has existed for a very long time.
I have read the Brahma net sutra and Vimalakirti sutra, several times.
When the chinese Yogi C. M. Chen teaches about the Mahayana silas (precepts) he mentions as his sources sutras that I haven't seen in english, such as Kasyapa parivarta sutra, Akashagarbha sutra, and Bodhisattvabhumi. There is also Bodhisattva pratimoksha sutra in existence.
Pratimoksha defines rules for an organisation, for a religious order, thus it can be said that there is a bodhisattva religious order. You can use an other word for it if you wish.