# \[APP\]\[Pro\] Device Capabilities - Enhance the capabilities of devices

**URL:** <https://community.homey.app/t/app-pro-device-capabilities-enhance-the-capabilities-of-devices/43287>\
**Category:** Apps\
**Tags:** flow, virtual-device, homey-pro, device-capabilities, avd\
**Created:** [February 19, 2021, 8:20am UTC](https://community.homey.app/t/app-pro-device-capabilities-enhance-the-capabilities-of-devices/43287 "2021-02-19T08:20:51Z")\
**Posts on this page:** 1\
**Showing post:** 785

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**Author:** ![Arie\_J\_Godschalk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/arie_j_godschalk/32/63027_2.png) [@Arie\_J\_Godschalk](https://community.homey.app/u/Arie_J_Godschalk)\
**Post date:** [October 6, 2022, 2:02pm UTC](https://community.homey.app/t/app-pro-device-capabilities-enhance-the-capabilities-of-devices/43287/785 "2022-10-06T14:02:31Z")

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> [@Erikje](#):
>
> Could you maybe make the option in it, that you can also calculate a number with variable? Like example:

There is an Set [expression] card, which allows for javascripts calculations to be used.  
Use can set functions to be used in the App Settings–\> Functions.

See the topic main text above and goto: [Setting and Using Functions](https://community.homey.app/t/app-pro-advanced-virtual-device-device-capabilities-app-with-unique-text-status-indicator/68198#setting-and-using-functions-12)

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