# Sostenuto implementation & Question regarding virtual loopback

**URL:** <https://community.blokas.io/t/sostenuto-implementation-question-regarding-virtual-loopback/4856>\
**Category:** Support\
**Created:** [November 28, 2023, 12:10am UTC](https://community.blokas.io/t/sostenuto-implementation-question-regarding-virtual-loopback/4856 "2023-11-28T00:10:34Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![resonotter](https://community.blokas.io/user_avatar/community.blokas.io/resonotter/32/6354_2.png) [@resonotter](https://community.blokas.io/u/resonotter)\
**Post date:** [November 28, 2023, 6:22am UTC](https://community.blokas.io/t/sostenuto-implementation-question-regarding-virtual-loopback/4856/5 "2023-11-28T06:22:30Z")

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> [@JoeyButters](#):
>
> 1 button toggles are a bit tricky.

@pje I just described a [sketch](https://community.blokas.io/t/how-to-starting-clock-by-pressing-a-key/4855/6) of this.

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