diff --git a/main/astrodatagui/AstrodataGUI.py b/main/astrodatagui/AstrodataGUI.py
index 746f029..ee97022 100644
--- a/main/astrodatagui/AstrodataGUI.py
+++ b/main/astrodatagui/AstrodataGUI.py
@@ -23,6 +23,7 @@ class AstrodataGUI(QtWidgets.QMainWindow):
         self.listDownloaded.itemClicked.connect(self.starSelected)
         self.listSequences.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
         self.listSequences.itemClicked.connect(self.sequenceSelected)
+        self.btCombineSeq.clicked.connect(self.btCombineSeqClicked)
 
         self.cbPlotNormalizeEnable.stateChanged.connect(self.plotOptionsCBChecked)
         self.cbPlotRemoveOutliersEnable.stateChanged.connect(self.plotOptionsCBChecked)
@@ -181,6 +182,16 @@ class AstrodataGUI(QtWidgets.QMainWindow):
         filePath = self.starDB.getFilePath(mainName, source, seq)
         self.flaredetectorPreview.setFitsFile(filePath, mainName)
 
+    def btCombineSeqClicked(self):
+        mainName = self.listDownloaded.currentItem().text()
+        filePaths = []
+        for item in self.listSequences.selectedItems():
+            seqText = item.text().split(" - ")
+            source = seqText[0]
+            seq = seqText[1]
+            filePaths.append(self.starDB.getFilePath(mainName, source, seq))
+        self.flaredetectorPreview.setFitsFiles(mainName, filePaths)
+
     def plotOptionsCBChecked(self, state):
         match(self.sender()):
             case self.cbPlotNormalizeEnable: