Hey yourself. Short answer, no. Slightly longer answer, allow me to clarify.

So basically, Ki is available to everyone who is NOT a mage. In the world of this roleplay, there's no limit except for one's lifespan to how physically powerful humans can become through constant training, so it's basically the [url=https://tvtropes.org/pmwiki/pmwiki.php/Main/CharlesAtlasSuperpower]Charles Atlas Superpower[/url] trope in action mixed with a bit of martial arts movie magic like wuxia.

On the other hand, mana is only available to those born as mages and the two forms of magic [i]are[/i] mutually exclusive. A non-mage cannot use mana and a mage cannot use Ki. You can choose one or the other, but you can't have both. Lore wise, this is because a mage's soul is different from an ordinary person's, but practically speaking, I figured they're already born powerful so it wouldn't be fair to let them use Ki as well. 

As explained in the Setting, psionic powers are unique to Spectres and the program is available to non-mages only. If someone had Ki powers before becoming a Spectre, they are replaced by the psionic abilities that they gain and the person can no longer use or learn to use Ki ever again. Price of power and all that. To be clear, no one is born a psionic. They are artificially created, hence why their telekinetic and telepathic abilities are considered to be unnatural. 

There [i]is[/i] a bit of overlap between how psionic and Mana abilities work in that similar things can be done by both, eg. Lifting and throwing objects, or stopping projectiles mid-flight. The difference is that Mana is about the direct control of matter whereas psionics use pure kinetic force. They can't, say, summon a ball of fire or shoot lightning from their hands, but what they can do is something like this (skip to 0.45): [youtube]https://youtu.be/4oXDZMsjvUM[/youtube].

Hope that clears everything up.