Users expect that they can build combined filter strings by supplementing their text entries with the selection from the dropdown list.

If a user wants to add a combined filter for a table field, for example to filter in the customer list for No. = "10000 | 30000", the only way is to enter the entire filter string.

If the user enters "10000 |" in the filter field and then selects the customer no. 30000 in the drop-down list, the value of the filter is replaced by the value "30000".

In the old Windows client, in this scenario, customer number 3000 was added to the previously entered filter and the user received the following filter string "10000 | 30000". This is the behaviour which endusers expect.