The GrapeCity.ActiveReports~GrapeCity.ActiveReports.SectionReportModel.ControlCollection~Add.html and GrapeCity.ActiveReports~GrapeCity.ActiveReports.SectionReportModel.ControlCollection~Remove.html methods enable you to add or remove controls from the collection. You can also use the GrapeCity.ActiveReports~GrapeCity.ActiveReports.SectionReportModel.ControlCollection~AddRange.html or GrapeCity.ActiveReports~GrapeCity.ActiveReports.SectionReportModel.ControlCollection~Clear methods to add or remove all controls from the collection.