To be honest, it looks like the same prohibited list from a Trump rally. I know chairs aren’t allowed in there either. Considering the President will be in attendance, makes sense that we’ll go through security screening. Which means Antifa/BLM will have to as well.
The most likely time for trouble is the afternoon protest at the Capitol. As far as I know there will be no screening, and the left probably figures everyone would have been at the morning rally and thus will have no defenses.
Will there be chairs for elderly people to sit on?
Only 5000 will be allowed onto the ellipse where it is possible that President Trump will speak in the morning. Most people will be on the mall during the day. I do not believe there will be any enclosure or screening .... ...or protection ..... on the mall.