Change
...
files order :
In the right part at the bottom ( PDF Editor for JIRA Panel) you can change the files order of your documents using the up Up and down arrows
The sequencing result follows the title of the pages as shown below:
Down arrows and choose the files to be exported using Select / Unselect action
Once you have selected and ordered your files, you can start the export using the Export Action, please see below:
Note that Export Action will be export all selected attachements on one PDF file which will be attached to the Jira issue.