Click on the year where you want to add the month to open the page
Click on create Page
Name the page according to the Month and the year you want to add
Click on the Page layout section and then click on the 2 column option
Name the 2 sections
On the agenda side add the Attachments Macro by typing the curly bracket ({) and starting to type the word attachment and select the attachments macro
On the submission side add the children display macro by typing a curly bracket ({) and starting to type the word child and select the children display macro
Your page will look like this
Click on save