Does anyone know if there is a way to filter by multiple values for one
column in a list view by URL?

I have the current URL format:

http://server/list/Forms/AllItems.aspx?View=" target="_blank" rel="nofollow">http://server/list/Forms/AllItems.aspx?View={LISTID}
&FilterField1=Activity&FilterValue1=Design

which will obviously filter the "Activity" column by the value "Design".

I would like to introduce an OR statement into here so that I can
filter by "Design" or "Build" for example.

http://server/list/Forms/AllItems.aspx?View=" target="_blank" rel="nofollow">http://server/list/Forms/AllItems.aspx?View={LISTID}
&FilterField1=Activity&FilterValue1=Design OR FilterValue1=Build

Any ideas?