CITING ETHICS 101
There are a variety of free citation management tools to help you with your research and citing.
Take time to view the tutorials first for example Zotero. https://infoguides.rit.edu/zotero/tutorials
Zotero’s FAQ: Zotero will renumber citations if you move text around automatically . You might have to hit the Refresh button in the Word add-on. Zoteor source link: https://forums.zotero.org/discussion/52513/how-to-change-the-order-of-citation-in-word-plug-in
You may have to add the citing format for SPIE into Zotero, if you do not see it listed under citing styles.
https://forums.zotero.org/discussion/9526/new-style-for-spie-journals
one general style: http://www.zotero.org/styles/spie-journals
and
6 dependent styles for each SPIE related journal:
http://www.zotero.org/styles/journal-of-applied-remote-sensing
http://www.zotero.org/styles/journal-of-biomedical-optics
http://www.zotero.org/styles/journal-of-electronic-imaging
http://www.zotero.org/styles/journal-of-micro-nanolithography-mems-and-moems
http://www.zotero.org/styles/journal-of-nanophotonics
http://www.zotero.org/styles/optical-engineering