Tools Needed:
Entity 1.3 Beta or later
MP map
Latest Bipd tag from HERE
*Guide*
*This tutorial assumes you already have your Biped in the MP map.* Also note, this was intended for the whole community but a single user specifically asked for help with this so, here!

Opening the correct tag
1. Open up your map in Entity. Scroll down to the Bipeds tag that you would like to edit. (bipd) I transfered a Marine that retains the ODST permutation to my map to edit. This biped was taken from 05a_deltaapproach.map (Doesn't matter what biped you use, they all have the stringid's for hands referenced.
2. Click the biped tag once to highlight it and that will bring up the reference editor for the biped. (highlighted in YELLOW)
3. We dont' want to use the reference editor though. (highlighted in RED) What we really need is Entity's Meta editor so after clicking the biped once, let's head to the right side. There is a Tools dropdown menu. (highlighted in GREEN is what we need to click).

*Don't worry about how the reference editor looks in this picture. This is an old plugin... The one you downloaded is featured where it needs to be and doesn't disrupt the content featured in this tutorial.*
Finding the reflexive to edit.
4. At the top of the middle window there is another dropdown box labeled tools. Make sure you are clicking on the middle Tools menu. NOT the Tools menu that we just clicked on!
5. We are now presented with four options... Choose the "Show..." option.

6. Once this window opens. There is an option in the bottom left side of the window that says "Show Invisibles". (highlighted in GREEN) Check that box and hit the "OK" button.

7. Now all we need to do is scroll down through the meta editor till we find this: (highlighted in GREEN)

*Notice* where the scroll bar is. (highlighted in RED). It's about halfway to the bottom.
Editing the StringID's. Also known and displayed here as "SID"
8. Make your biped's SID's look exactly like the picture featured below this statement.

Finishing Project.
9. All you must do now is save what you have edited in the meta editor. (see above picture in blue #8 )