I think your question makes a lot of people nervous and less likely to answer as the topic is not only controversial, but also potentially dangerous, (as you are already aware) and they worry about contributing to something that may not be a safe endeavor. I don’t blame them, and I would also likely stay silent, except I get the impression you are somewhat gung-ho about this and thus it’s better you have information, rather than go into it blindly.
This is not a criticism, mind you, just a statement of caution as well as why I have chosen to answer you. 
Of course it’s possible, it’s been done for a very long time by those whom have been indoctrinated into such practices and trained to do so by those who come before them or by the spirits themselves.
Each substance has it’s own consciousness and life force, they have overminds and oversouls…(all plant and animal species do)…
You would do much better to slowly get to know and become acquainted with these presences first before attempting a full on experience and utilizing their altered states to do energy work.
You will also need to experience the full states at least once or twice before truly attempting to manifest with them, it’s not impossible to do the first try, but not necessarily wise, patience is very key with all of these.
Beyond that your goal should be to learn how to access these states by yourself unaided by the entheogens.
Tolerance develops quickly and you cannot always rely on such substances to be available when you need to do manifestation work.
With that being said, the spirits of these gifts are very kind, as long as approached with respect, love, gratitude, and courtesy.
(Some are a bit more welcoming than others due to the experiences they have had with humanity.)
You would do very well to find a way to have a hand in the growth of some of these living beings before you attempt to make use of them for manifestation and such. They will help you and can assist you in your efforts if you can obtain their favor and show them that you have honorable intentions. (Honorable to YOU, as it will be your heart and consciousness that they will look at first.)
IF you cannot take a hand in the growth of what you consume, you should sit with it in meditation BEFOREHAND and connect with the spirit and send it love and gratitude. If possible, every day for at least three days beforehand.
The main key is to not waste the experience on frivolous endeavors once you have gotten a few such experiences under your belt. You’ll need to be able to have full control of your consciousness and faculties within the altered state and that requires having experienced them and then having disciplined yourself enough to stay focused and coherent while in them.
This is a very very VAST topic and there is faaaarrr too much information to cover just in a back and forth in a forum like this, you could read for days and not even scratch the surface.
Thankfully, there are also MANY books and a great deal of available material on these substances and practices regarding them… I strongly encourage you to educate yourself as much as possible if you sincerely decide to pursue this…Look up Authors like Terrence Mckenna, and Timothy Leery, and Albert Hoffman, also look up Shamanic practices and Entheogens, you’ll find them in many many walks of life under different titles. (Ganesh Baba comes to mind as one example. There are numerous others of course.)
I will say this though, many times, abilities unlocked in such states are either only accessible in those states, OR is greatly lessened or compromised when in an unaltered state…
There are exceptions, but for permanent effects that carry beyond the “trip” usually a person needs to be very close to unlocking those abilities unaided and the Entheogens give the final push to break through the last hurdle or two needed.
Single shot manifesting is a different sory because it doesn’t require a permanent effect in the individual, and so the energy sent out in that state can indeed manifest things long term etc…
However, also be aware that in such a state, one’s aura is very bright and manifesting often makes it brighter, and during these experiences you are much more visible (and susceptible) to other beings than you normally are, so take proper protection precautions beforehand and makes sure your environment (and you) are safe and protected.
Definitely include whatever guardian Higher Power you work with in such things as well…(Jesus, Buddha, Shiva, Etc… Whomever it is you are connected to.)
With all of this having been said, I’m not advocating or supporting anything. Just offering an informed perspective. Whatever choices you make as a result of the above information is your choice and yours alone, I take no responsibility for anything negative you experience as a result.
Lastly, if you do undertake such an endeavor, having a sober sitter is very important, or even better a skilled shaman or psychonaut who is versed and can safely assist you with such.
Whatever you choose May You Be Safe, Blessed, and Fortuitous in Your Path and Guarded by Grace From Above in All Your Endeavors. 
