essinit.md

@@ -124,7 +124,7 @@ If you leave the config empty ```''``` the following GUI will be displayed. Simp
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 **remData**  
-These are the channel indices that do not contain EEG information this includes unplugged channels but will **not include fiducials**. ESS will by default not load any channels that do not contain EEG. For example our lab never uses the EXG8 channel of our BioSemi so there is meaningless data in its EEG.data row, this corresponds to using ```[remData],[136]``` (128 electrodes + 7 eyes + 1 junk) to remove the very last channel. This item is one of the few that does not contain a backup GUI as an empty config is a acceptable answer and this default will remove no channels. 
+These are the channel indices that do not contain EEG information this includes unplugged channels but will **not include fiducials**. ESS will by default not load any channels that do not contain EEG. For example our lab never uses the EXG8 channel of our BioSemi so there is meaningless data in its EEG.data row, this corresponds to using ```[remData],[136]``` (128 electrodes + 7 eyes + 1 junk) to remove the very last junk channel. This item is one of the few that does not contain a backup GUI as an empty config is a acceptable answer and this default will remove no channels. 
 
 :so: This feature will depend on your labs modality. It is good practice to load a raw file and investigate the EEG.data structure.  
 
@@ -136,9 +136,13 @@ The new name of the file once the script is config. Use batch string swaps when
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 # Merging  Variables
+In order for you to merge files they will need to have the same number of channels and the same sampling rate. After you choose the number of files and which ones they are, this script will check for file consistency. If one or more files have a different number of channels or srate you will receive a pop-up to notify you that the files are being edited.
+For channels, all the files will be reduced to have the same number of channels. For example if one file has 128, while the others have 135, each of the 135 files will have there last 7 channels removed. This is common for systems like the Biosemi, depending on weather the session used the EXG eye channels.
+For srate, all the files will be re sampled to have the same frequency as the file with the lowest rate. For example if one file's srate is 512, and the others are 1024, they will be re-sampled to 1/2 the frequency.
+You will still have the opportunity to adjust channels using your location file or ```remChans```, or adjusting the sampling rate further using the ```change_srate``` variable.
 
 **merges**  
-This number indicates the number of files you wish to merge together. Entering a 1 into this field will prompt you for no merges, otherwise use the number of files you are combining. If you leave this feild empty ```''``` then you will get the following GUI prompt for a number.
+This number indicates the number of files you wish to merge together. Entering a 1 into this field will prompt you for no merges, otherwise use the number of files you are combining. If you leave this field empty ```''``` then you will get the following GUI prompt for a number.
 ![nummerges](/uploads/9885d54325fd95c2c5bc144bbe24419c/nummerges.png)  
 
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