Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, PACKID, ACTIVITY_OBJECT, SUBOBJECT, TCODE, ACT_TYPE, SEQN4, CHILD_CLS, SUBOBJ_TEXT, ACT_VIEW, EXEC_TARGET, ACT_STATE, MANUAL_STS_ALLWD, CHECK_FUNCNAME, OPTIONAL, RESTART_ALLOWED, NO_DIALOG, LINK_DOCUMENT, DIR_PROGCALL, PARALLEL_EXEC FROM CNVIMG