essinit.md

@@ -74,6 +74,7 @@ The table below indicates with an **x** the methods in which you can describe ea
 | Onevents       |       |    x   |    x   |    x   |    x   | Events that represent HED tag 'Custom/Marks/RecStart'                           |
 | Offevents      |      |    x   |    x   |    x   |    x   | Events that represent HED tag 'Custom/Marks/RecStop'                            |
 | Inevents       |         |    x   |    x   |    x   |    x   | Events that represent HED tag 'Custom/Marks/InEvent'                            |
+| filerename       |         |    x   |       |    x   |       | Name of the saved file,  using string swaps                           |
 
 :so: Filling in the config file is a great way to standardise the init stage, but using the manual option becomes much more advantageous for variables that changes between subjects. For example if a couple of your files need merges but the other ones do not. Simply leave the ```merges``` and ```mergefiles``` fields empty. This will prompt your for each file so that you can adjust it as you need.
 
@@ -129,6 +130,11 @@ These are the channel indices that do not contain EEG information this includes
 
 ***
 
+**filerename**   
+The new name of the file once the script is config. Use batch string swaps when batching multiple files. If left empty ```''``` the saved file will default to         ``` '[batch_dfn,.,-1]_init.set'```  meaning it will keep the same name, and exchange the old extension for *_init.set*. This feature is particularly useful with raw files or ESS files that have very large names, where all the information it not necessary.
+
+***
+
 # Merging  Variables
 
 **merges**