Here is a page from the installation manual, found by search engine. Note that motor assembly wire colors are not the same as the cable wire colors. In this comment, the cable colors are referred to. (Click to expand.)

The green/yellow wire is bonded to ground; the white wire is connected to the power feed neutral, and red, blue, orange, and brown would go to a rotary selector switch (or a push button switch assembly) that selects one of these color wires to connect to the black hot side 120V ac power. There needs to be a switch position for OFF. So ideally there are 5 positions. If you only have fewer positions in your switch, you will have to use trial and error to choose what speeds you want to have.

Multi-position rotary switches should be available from electronics distributors such as Newark, Allied, Digi-Key, etc. You will also need a knob that fits the typical quarter-inch (IIRC) shaft.

The switch will need to be in a box that meets NEC requirements for fire protection. You may use a connector rated for the voltage and current, or feed the cable through a proper cable clamp device (e.g., a Romex connector) and use wire nuts inside to connect the cable leads to respective flying leads soldered to the switch. It may be possible to find a rotary switch with a screw connection housing (like an electrical receptacle), in which case cable termination can be by crimp-on lugs. Using stranded wire under screws needs consideration of whether they will be properly retained.

In most municipalities, you work will need to be inspected, and you will theoretically need an electrical permit. Your state may impose additional limitations.

Thank you thats very detailed this was the switch i had

Yes ill be doing those separatly

Hmmm. My expectation from the schematic is that only one of the four motor power leads should be energized for each speed. The switch description implies two terminals are on, given power to "B." However, if you connect nothing to "C" it should work for three speeds. Perhaps "C" was intended to operate a motorized damper or some other function.

It sounds like that switch may not be the best option for this application, (my father in law has an entire 1 bedroom house full of random stuff), I will look for a more appropriate switch.

"an entire 1 bedroom house full of random stuff"

Is that all? [Further details redacted.]

Lol, yeah i know he could easily build a house or two with all the crap laying around. So is something like this a better option, I could run a jumper with the live wire to each option and then the lead wire to the motor. https://www.amazon.com/Taiss-Universal-Changeover-Terminals-Connection/dp/B08GR2344M/ref=sr_1_18?crid=1DOABGZF6FBB4&keywords=5+position+rotary+switch&qid=1698352784&sprefix=5+position%2Caps%2C100&sr=8-18 

Looks like you would wire the hot 120 Vac in parallel to the odd number terminals and the motor "taps" to the even number terminals. Note that position 1 should be the most powerful / highest speed connection; motors like to get a jolt to start. Wire to reduce speed as the knob is turned clockwise. 120 Vac neutral goes to motor neutral.