How to delete My Day and highlighting in conversations on FB Messenger (Android + root needed)

Hello guys and girls! It's my first post actually, so besides making a #introduceyourself post (seems like a usual thing here), I decided to start with something useful :) 

So, You can see, that Facebook Messenger is getting worse with every update. Useless features, like My Day (snapchat wannabe?) or highlighting days of the week, number etc. in conversations (yes, because I want to add a reminder every damn time) are making me so mad, and probably I'm not alone. So let's start:

Requirements:

• root access
• free three minutes :)

1. Download terminal from Play Store (I use Material Terminal)

2. Get root access in it (type su) and then enter:  am start -n "com.facebook.orca/com.facebook.messaging.internalprefs.MessengerInternalPreferenceActivity" 

3. Internal Messenger settings will appear. Go to Gatekeeper Override -> Search Gatekeepers -> Type "internal" -> Set "messenger_internal_prefs_android" to Yes.  (it keeps internal settings from hiding, it will be available till You delete the app)

4. Now You can delete the mentioned features. Go to Internal in Messenger settings, then MobileConfig -> Search for "wave2" -> Set "wave2 montage enabled" (or "poland montage enabled" if You're from Poland) to false and restart. Then go to MobileConfig again -> Search for "words" -> Set "show trigger words" to false and restart again.

Now both things should be gone, unfortunately this can come back after some updates, then last point needs to be repeated again.