Assuming I understood your question correctly, I was able to update the default.xml for the 'search' app using: cat test.xml
<nav search_view="search" color="#5CC05A">
<view name="search" default="true" />
<view name="analytics_workspace" />
<view name="datasets" />
<view name="reports" />
<view name="alerts" />
<view name="dashboards" />
</nav>
curl -ks -u admin:"${pw}" https://localhost:8089/servicesNS/nobody/search/data/ui/nav/default --data-urlencode eai:data@test.xml
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