How can I amend the query to show info as per below, please?

DECLARE @Temp TABLE (Bttla INT, PreLastDone DATETIME, JpNum CHAR(1))

INSERT @Temp  (Bttla, JpNum, PreLastDone)
SELECT BTTLA, JPNUM, MAX(ACTFINISH) as PreLastDone
FROM   MAXIMO."BTV_ZZZ"
WHERE  SITEID ='XXXX'
AND    JPNUM in ('A', 'B')
AND    WOCLASS = 'ZZZ'
AND    ACTFINISH > SYSDATE-3
GROUP BY BTTLA, JPNUM


SELECT	TLA	= a.BTTLA
,	[JP: B]	= b.PreLastDone
,	[JP: A]	= a.PreLastDone
FROM       @Temp  a
INNER JOIN @Temp  b ON a.BTTLA = b.BTTLA
ORDER BY TLA

WITH cteSource As
(
    SELECT
        BTTLA,
        JPNUM,
        MAX(ACTFINISH) as PreLastDone
    FROM 
        MAXIMO."BTV_ZZZ"
    WHERE
        SITEID ='XXXX'
    AND 
        JPNUM in ('A', 'B')
    AND 
        WOCLASS = 'ZZZ'
    AND 
        ACTFINISH > SYSDATE-3
    GROUP BY
        BTTLA,
        JPNUM
)
SELECT
    BTTLA As TLA,
    Max(CASE JPNUM WHEN 'A' THEN PreLastDone END) As [JP: A],
    Max(CASE JPNUM WHEN 'B' THEN PreLastDone END) As [JP: B]
FROM
    cteSource
GROUP BY
    BTTLA
ORDER BY
    BTTLA
;