I would like to make some modifications to an application's default navigation menu bar once it is rendered. I can do this simply in dashboards and forms using the script tag, but I can't seem to find a way to do it for other pages (e.g., search page, report list page, dashboard list page, etc.).
@rucb, you can refer to some of my previous answers to build your own views within your app to access your dashboards, searches, reports etc.
1) create your own Navigation using Prebuilt Panels: https://answers.splunk.com/answers/588779/whats-the-best-way-to-limit-a-role-so-it-only-has.html and https://answers.splunk.com/answers/595047/can-we-implement-cascading-dropdowns-in-a-dashboar.html
2) Create your own Search UI as dashboard using SplunkJS: https://answers.splunk.com/answers/586948/how-to-change-app-banner-css-when-open-search-in-s.html
3) Create your own dashboards with the link for dashboards/reports under specific app/accessible by logged in User, using Splunk REST API: https://answers.splunk.com/answers/639475/how-to-pass-a-dashboard-as-value-in-dropdown-of-an-1.html
Please try out and confirm!