What should I do if the online ED Visa application only allows one page upload per document?

Hi, can somebody please help as I cannot find my answer to this question within the group. I am applying for an online ED Visa for London and I am about to attach my documents like 'approval letter from Thai Ministry of education' etc. The thing is most of the documents are multiple pages but the site can only accept one document/page. Shall I just upload the FIRST page from each document? Also I am going to try what Ron Angel suggested for the 'a confirmation letter from employee section' and upload a bank statement, hoping it will work. Thanks in advance.