there is a drop down list showing the options if personal funded, supported by someone etc. just itemized things such as accommodation, plane ticket, food who will take responsible in the space provided. if personal funded attach bank statement that shows you are capable to do so.
you are not allowed to study longer than 3 months if you are on visit visa. if you said yes attach proof, if you said no, no need to attach anything. if you do the opposite what you declared then that is breach of conditions specified in your visa.
Just follow the rules.