Unfortunately, at the moment the only way to resort them is to manually reorder them in the Layer Stacking tool. There is a current request to add a button to automatically reverse the order of bands imported into the Layer Stacking Tool or the New File Builder. I'm sorry that I don't have better news for you. Peg Shippert Exelis VIS

Hi Peg, Thanks for your reply. Actually, I stumbled across the new ENVI 5.1 'New File Builder' tool and gave that a try and surprisingly it sorted my bands in the opposite order than the Layer Stacking tool, so that worked for me after all. But a sort functionality within either those tools would sure help with either of those tools, espcially when working with hyperspectral data. Maybe a 'data sort' tool where one could input a txt file with the band names in the desired order would be most flexible and possibly the best solution. Maybe something to put into the Code Library, which will hopefully be up again soon. ;) Mike

Mike, In the meantime, you can add some custom functionality using IDL. Aditya Singh has created a very useful series of hyperspectral data tools, one of which addresses your issue (i.e., flipbands.pro). You can call the procedure in ENVI+IDL, or customize further for your own purposes. The code as-is flips, stacks, and unstacks. Check the code out here: http://ecocodespace.wordp...ng-unstacking-bands/ Sean

Hi Sean, Thanks for the links. Those scripts are great. Mike