void field_dynattr([data[,[name | number] | [attribute,flag]]]) expr data int attribute,number,flag string name
|data|| specifies a dynamic attribute. If it has no name
or number, all fields in the current window are assigned the
same dynamic attributes.
|name|| (optional) identifies a single field to which attributes
|number|| (optional) identifies field by sequence number
(must evaluate to a valid field sequence number).
|attribute|| specifies a bitmask. The following are valid, dynamic,
and can be changed at runtime:
|flag = true||specifies that the dynamic attributes are assigned to all fields that match the bitmask.|