In order to provide better coverage of the specifications I do propose to implement:

• Tree-like import that means importing parent and subtickets;
• Provide straight dependence between subticket and linked test, i.e. if Practitest user link test to subticket the test should also be linked to parent ticket automatically, as subticket is a must part of parent;
• Add system field "Traceability" for requirements that will reflect clickable test IDs;

If the solution will be implemented it will simplify test covering process and test covering tracking process;