[BlackBerry KEYone Guides, News, & Discussion] knreddy:
Experience sharing on another way (Timed) of using Convenience key as Mute Switch

Prerequisites

(i) Button Mapper https://play.google.com/store/apps/details?id=flar2.homebutton

(ii) SilentTime apk (attached)

(iii) Convenience Key is free from configurations (if not free Go to Settings > Convenience Key > tap Clear)

(Iv) Blackberry ketone with Android v7.1.1 (method may work on other versions)

1)	Installed SilentTime app , now opened Silent Time Setter (It forms two icons at the app drawer SilentTime and Silent Time Setter) and set the required duration (30 min or 1 hr or 2 hr etc) to keep the phone in silence once it got activated, select vibrate or silent mode , finally click on Set

2)	Opened Button Mapper application > Add Buttons > tap / touch the + (Plus) Icon > press the convenience key, it will detect the convenience key and provide entry as PP_SHORT_TOUCH 284

(accessibility option enabled for Button Mapper, Settings > accessibility > Button mapper > enable)

3)	Touch / tap on PP_SHORT_TOUCH 284 to Customize the key> set "Long press" > Now from the top selected option "Applications" > further selected SilentTime” from list of applications

[Post requisites: ( I have done but may not be required)

(I) Do not disturb override permissions at Notification access given to both Button mapper and SilentTime (Settings > Notification > Do not disturb override enable for both these apps)

(II) Automatic start permissions given to both Button mapper and SilentTime

(App drawer > Power Center >manage automatic apps > enable both these apps)

(IiI) exemption from power optimization given to both Button mapper and SilentTime (App drawer > Power Center > turn on battery optimisationall apps > enable for both these apps)l]

Now press power button and conveyance button simultaneously to mute to timed duration or unmute alternatively even while the phone in deep sleep.

Note: Convenience Key can also be configured to open the SilentTime from built in facility but it is unable to act without unlocking the phone , however if we unlock, we have many options, no longer convenience key is required.

Acknowledgement: This was my long back idea but it got a realization as got introduced to Button Mapper App from writing of Mr Glen L- Thanks.

Caution: This is only experience sharing, without any responsibility, user has to take care that the convenience key is not long pressed unintentionally while phone is in wake up state or simultaneous pressing of power key and conveyance key while the phone is in deep sleep , otherwise it may lead to not responding to a phone communication during the set period and its relevant consequences. Further one more limitation with this app is that if the phone is restarted in mute condition it shall not unmute even after expiry of set duration.

My idea is that Blackberry should have provided a configurable timed mute key / button in a recession so that it cannot be pressed unintentionally in future phones (many of apple / oneplus one users forget slide back the switch to unmute)

New finding on 12.02.19 : the same can be achieved differently by with the conveyance button's built in configuration method (Settings > conveyance key > shortcuts >open app > SilentTime ) . However we have to press first power key, then conveyance key to enable timed mute or unmute alternatively (but we have to disable customise option of Button Mapper App (Button Mapper > Add button > PP_SHORT_TOUCH 284 > put off customise) or uninstall Button Mapper