How Can I Use Filters in Merlin Project?
Merlin Project offers three filter options controlling how filtered results are shown as soon as the filter is applied:

Show non-matching hierarchy
This view option shows non-matching filter results. The hierarchy will remain as it is and the titles will be grayed out.

Show only matching hierarchy
This display option lets you list the filter results hierarchically when activities and groups satisfy the filter criteria.
Non-matching results will not be shown.

Show as a flat list
This view option lists the filter results without any hierarchy. Non-matching results will not be shown.
