Interesting, then that would be for the case when one wishes to have an OOBE while meditating?
Yes, but to give you a more precise answer; the term 'meditation' has come to mean a cognitive mental exercise with the intention of producing an altered state of consciousness which is often called in English a religious experience, and in Pali and Sanskrit that state is called samadhi, and that state has 8 stages, and those 8 stages are relative degrees of suspension of the cognitive functions, so we really cannot call having an OOBE during meditation, when meditation we end and samadhi would begin. But, otherwise, yes one can enter the 4th stage of samadhi via a meditation technique and session, and recognize that depth and thus move to the 5th stage, which is an OOBE; however, one is likely to be meditating lying down to enter an OOBE, because there won't be any cognitive awareness of the body to keep it sitting up in meditation.
I have another question, would it be possible to find guides that would 'download' worldly knowledge into me. I've discussed wanting to use the lucid state to learn, but I wonder if it's possible to say, contact an entity who has a knowledge of mathematics or science and ask them to teach me. I feel like the lucid/OOBE world would be a great chance to gain insight both spiritually and in the mundane world. Or even still, use the akashic records to study from directly.
Yes, gaining knowledge and wisdom through deep meditation into deep altered states of consciousness associated with the 8 stages of the religious experience (samadhi) is a more precise definition of insight (vipasana); however, remember the 8 stages of samadhi are relative degrees of suspension of the cognitive functions, and your request is very cognitive.
So, how insight really works is through deep meditation we suspend the cognitive functions, and by so doing we enter an OOBE, and by doing that on a regular basis one will encounter many, many disembodied beings, as well as recover whole previous lifetimes from whom and which we can download vast quantities of knowledge and wisdom that in most cases overwhelms the retention capacity of the mind/brain/awareness that we do not often retain 99% of that wisdom/knowledge, but enough that the experience is typically life changing and transformative.