New Post: wait-process

1. The Wait-UiaControlState cmdlet with the -Seconds parameter
   Please refer to the page.
   Using this cmdlet you can wait for more sofisticated condition than other cmdlets offer.
2. A 'regular' Get-UiaButton cmdlet has functionality to wait for a control, just set the number of seconds you are ready to wait:

Get-UiaWindow -Name wnd | Get-UiaButton -Name yourButtonName -Seconds 300;

1. The Wait-UiaControlIsVisible cmdlet

Get-UiaWindow -Name windowName | Get-UiaButton -Name OK | Wait-UiaControlIsVisible -Seconds 60;