SharePointBoost provides functional SharePoint web parts to make it more powerful. It is
SharePoint Cascaded Lookup that can enable you to build parent-child relationships between columns in the same list so that data entered in one field filters the options presented in another.You have the freedom to specify the list you want to look up from. It provides a faster way to filter results by specifying a filter column and a parent column. Meanwhile, this will reduce the possibility of making mistakes.