Open the rules file for EWQL... you'll see that controller 11 (dynamics) is defined with the following code:
<dynamic-map id="ewql">
<dynamic dynamic="ppppp" value="0" />
<dynamic dynamic="pppp" value="10" />
<dynamic dynamic="ppp" value="30" />
<dynamic dynamic="pp" value="40" />
<dynamic dynamic="p" value="50" />
<dynamic dynamic="mp" value="75" />
<dynamic dynamic="mf" value="85" />
<dynamic dynamic="f" value="100" />
<dynamic dynamic="ff" value="104" />
<dynamic dynamic="fff" value="112" />
<dynamic dynamic="ffff" value="120" />
<dynamic dynamic="fffff" value="127" />
</dynamic-map>
<!-- PLAY ID -->
<plugin id="1886151033">
<setup>
<velocity-map id="ewql" />
<hairpin-map id="ewql" />
<hairpin-cc value="11" />
</setup>
These values also seem to be used for velocities, so the default velocity (when it appears gray) changes with the dynamic marking. A dynamic level of
forte will send CC-11 message of 100 and a velocity level of 100. See the images below for a comparison with EWQL flute:

- Test3 Notion.jpg (11.68 KiB) Viewed 7636 times
This is what the MIDI data looks like when I export from Notion and import into Reaper:

- Test3 Reaper.jpg (119.6 KiB) Viewed 7636 times
Notice that the velocity value and the CC-11 value are the same as the dynamic changes. Also, the default dynamic in Notion appears to be
mf.