Select the stand(s) you want to clear the details from then click on the 'Clear Properties' button located on the Dynamic ribbon.
TIP 1 : If you want to select stands of a certain Stand Type by following the help on this page.
TIP 2 : To select ALL stands, press CTRL+A on your keyboard, then press F3 twice.
The following box will appear letting you select which properties you would like to clear. Select the relevant items and click OK.
The box on the right shows you what properties are cleared from the stand details.
Select the stand(s) you want to clear the details from then press CTRL+DELETE on your keyboard.
Note: Make sure you only have stands selected when using this function otherwise your stand(s) will be deleted completely. To select only stands press F3 on your keyboard.
Double click on the stand you want to clear the details from, then click on the Clear button located at the bottom of the Stand Details box: