Editing a Custom Template
To edit a template, first download the original template. In the list of Forms & Templates, click the control box to the left of the template, and click Download Original from the menu. Alternatively, click the download button in the right-panel preview. This will start a download of the template file.
Once the original template is open on your device, make all necessary edits and save locally to your device. Once done, upload the edited template.