Up and down bow at same time

Hello! How could I get a bow down and up at the same time (I attach photo)?
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Either by adding the upbow at a later rhythmic position (eg a semiquaver / 16th) by showing the caret and positioning it where you want the upbow to go before opening the playing techniques popover -

Or by creating a custom playing technique that shows both side by side, which you can input wherever you want to show this indication -

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Seems to me there is a technique for that already

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