This thread is getting longer and longer and it is hard for us to maintain all the back and forth. Would you please kindly open up new threads for your new questions? This will help us to maintain the threads and give you a better service and also it will help our other customers to find a solution if they have the same question as you.
So, let's help you with the footer in a new thread which you will open up.
Regarding the ID:
Please make sure that the ID be all lowercase and there should be no spaces. So the ID for your case should be
customwebdesign which you should add into the ID option of the Section as my colleague described.
Whenever you want to link to that section with the ID, you need to add something like this for the link:
# tells the browser to go to the section with the
As you seem to be getting started with such stuff I strongly suggest that you first study up our theme documentation here.
Thank you for your understanding.