Change the order of files
In the right part at the bottom ( Kepler - Merging Documents 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:
The "Export" Action will combine all selected attachements in the order you specified into one single PDF file which will then be attached to the Jira issue.