PARIS, May 5 (Reuters) - European stocks were seen inching higher on Monday in thin volumes as UK markets were closed for a holiday, with gains set to be capped following soft Chinese manufacturing data. Financial spreadbetters expected Germany&aposs DAX .GDAXI to open around 6 points higher, or up 0.13 percent, and France&aposs CAC 40 .FCHI to open 7 points higher, or up or 0.07