WYSIWYG editor

I have no coding experience and am trying to create a process manual with the WYSIWYG editor.

I have put a cover page together, the overview section includes the models description, the start event, end event, Roles and IT systems - however I have been unable to get it to display in the order I would like, so any help on this would be great. also the other problem it that if you have more than one start event, instead of grouping those all together in one cell of the table it gives each object a cell of its own. ( i think this is a limitation with the editor)

Model graphic is easy to sort, do no help needed there.

the detailed information is where I am struggling with the WYSIWYG editor.  In the create process manual ARISscript report the detailed information is the activity name, with the role that is responsible the input and outputs and the IT system, with a second table for the activity name and it's description,  what I want to do is have a table with the activity name it's description the Role responsible then the input, output and IT systems.  I am really struggling to get the editor to do this, and the tutorials I have found are helpful they don't help with my situation so am looking for some guidance on how.  I have gotten as far as listing the activities with there descriptions but am unable to complete the table to include roles, input, output and IT systems.  Please any tips or tutorial links would be super helpful!