Don't edit the WAR directly in the webapps directory (both for security concern, and the fact it would be lost if the webapp were ever rebuilt or re-deployed - which happens as part of a hotfix or update. Content edited there is also not available when you're using a clustered midtier)
https://go.documentation.sas.com/?docsetId=stpug&docsetTarget=webinput.htm&docsetVersion=9.4&locale=...
Covers how you can have the content put in Config\Lev1\Web\WebAppServer\SASServer1_1\sas_webapps\sas.storedprocess.war\input
and then it will be included when the application is rebuilt/redeployed.