I don't think you are understanding my question (or I'm not understanding your answer).
My techs are set to view assets only. When they visit the dashboard the are shown all of the default pre-built tabs. They then click on the pencil on each tab and choose to delete the tabs. But when they log out and back in again all of the pre-built tabs show back up again even though they deleted them.
Dashboard tabs can be shared with all users that have asset management rights. Likely, your techs have a different role assigned. More information can be found here: https://www.lansweeper.com/knowledgebase/sharing-dashboard-tabs-with-other-users/