XL Setting to Share is available on select models only. If your monitor is not on the list, we're sorry that you won't be able to use it, because this feature requires hardware support that’s only available on listed models. The feature doesn't work on incompatible models.

XL Setting to Share can be downloaded as a direct executable from the following page and requires no installation.
https://zowie.benq.com/en/xl-setting-to-share.html