The difference between each token type is primarily which token contract has to be deployed as the smart contract for an equity offering is different than compared to a bond or a utility token.
If you wish to not have any token-related parameters in your KYC SaaS you can simply choose "None" which enables you to use the KYC SaaS as a simple onboarding tool for your investors, either for equity or tokens.
Many of our customers also use this in connection with our Referral feature, where you can assign certain investors to certain projects so you can use for example 1 system for several thousand investors with just separating them through their referral source.