I would very much like this feature too!!

I would also like to see this feature available via MIDI Mapping so that I can map this to my other controllers, like the DDJ-SZ. The SZ has 3 FX knobs on each deck, so it would be great to switch from FX knobs to Stem knobs, allowing both EQ and Stem EQ to be used at the same time.

I guess it could never be implemented due to external routing of the S11 and itself being a hardware mixer instead of software mixer like some midi controllers.
If you implement stem mixing on a hardware mixer like S11, when you move the knob, you will, besides changing stem volume, also change the frequency of the song you are playing. Depending on the knob, you will be boosting/lowering low/mid/high.

That's true, but opening it up, gives uw the opportunity to assign that feature to an extra module.

It's my favourite feature of the DDJ-FLX10. Would love to have it on my Rane 70 too.

+100000

Dear Serato DJ Team,

Introducing the "Stem EQ" feature to the DJM-S11 mixer would be a tremendous enhancement for us, the users. With the recent update adding this functionality to the DDJ-REV7, we have seen how it can elevate creative performances to the next level. Implementing a similar update for the DJM-S11 would greatly enrich our professional DJ sets and add a new dimension to our mixes.

We kindly request you to consider this update. Such a development would not only enhance the value of your product but also strengthen the loyalty and satisfaction of your user base. Thank you in advance for your attention and support.

Best regards,
DJ Koray Onur
djkoray01

i did it. here is map file . <midi app=" 3.2.3.581">

<control channel="1" event_type="Control Change" data_type="Absolute 7" control="11">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="0" slot_id="1">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
<codfather_gain deck_set="Default" deck_id="0" slot_id="2">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="0" slot_id="0">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>

<control channel="1" event_type="Control Change" control="15">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="0" slot_id="3">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="0" slot_id="1">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>
<control channel="1" event_type="Control Change" data_type="Absolute 7" control="7">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="0" slot_id="0">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="0" slot_id="0">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>





<control channel="2" event_type="Control Change" data_type="Absolute 7" control="11">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="1" slot_id="1">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
<codfather_gain deck_set="Default" deck_id="1" slot_id="2">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="1" slot_id="0">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>

<control channel="2" event_type="Control Change" control="15">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="1" slot_id="3">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="1" slot_id="1">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>
<control channel="2" event_type="Control Change" data_type="Absolute 7" control="7">
<userio event="click">
<codfather_gain deck_set="Default" deck_id="1" slot_id="0">
<translation action_on="any" behaviour="explicit"/>
</codfather_gain>
</userio>
<userio event="output">
<codfather_gain deck_set="Default" deck_id="1" slot_id="0">
<translation action_on="any">
<alias name="off" value="0"/>
<alias name="100%" value="0"/>
<alias name="100%+6dB" value="1"/>
</translation>
</codfather_gain>
</userio>
</control>


</midi>