Can I change my visa extension date and apply while traveling in Thailand?

The poster inquires about renewing their extension of stay based on retirement and raises three main questions: 1) Can they change their annual renewal date from April to July? 2) Can they apply for the extension while traveling around Thailand? 3) Do they need to present their house book, landlady's ID, and rental agreement if they are at the address listed on their TM30? Comments clarify that the renewal date cannot be altered without exiting Thailand and that the extension application must be done at the local immigration office. Additionally, necessary documentation such as the TM30 form, a lease, and potentially the landlord's ID is generally required.