Is it possible to customize a template for web application in ArcGIS Online?
What I mean, none of the templates 100% suits our needs so I'm wondering if I could download the code of basic viewer, let's say, add required functions and upload it back to ArcGIS Online and use it for our maps?
Best Answer
According to your question Yes its possible to customize the templates and I have customized one template & go though following links which will be helpful/guide for you..
Useful links for you :
Create Customized Mapping Applications Using Esri's Web Map and Application Templates in ArcGIS Online
Free Video (Getting Started with Map Templates)
Lots of Web Application Templates
Creating web application templates
I hope it will help you..thanks