ui.modern.session.search_history.suggest
Background
This setting controls whether the search history should be returned with auto-completion suggestions.
When enabled, a new category of suggestions will be added to the auto-completion suggestions, containing the previous queries of the user.
The name of the category can be customized with ui.modern.session.search_history.suggest.category setting
and the display template of each query can be customized with ui.modern.session.search_history.suggest.display_template setting
Setting the key
Set this configuration key in the results page (preferred) or search package configuration.
Use the configuration key editor to add or edit the ui.modern.session.search_history.suggest key, and set the value. This can be set to any valid Boolean value.