Pandiagonal magic & symmetric 7x7x7 cube (shift method)

Use the same method to construct the panmagic 5x5 square (shift) to construct a symmetric & panmagic 7x7x7 cube.

Choose as first row of the first grid in the first level: 3-4-5-6-0-1-2. Construct row 2 up to 7 of the first grid of the first level by shifting the first row each time 4 places to the left. Construct the first grid of level 2 up to 7 by shifting the columns of the first grid of the first level each time 2 places to the left.

Choose as first row of the second grid in the first level: 6-0-1-2-3-4-5. Construct row 2 up to 7 of the second grid of the first level by shifting the first row each time 4 places to the right. Construct the second grid of level 2 up to 7 by shifting the columns of the second grid of the first level each time 2 places to the left.

The third grid is the same as the second grid, but the levels are put in reversed order (7 up to 1 instead of 1 up to 7).

Take 1x number from first grid + 7x number from second grid + 49x number from third grid to get a symmetric & panmagic 7x7x7 cube.

*1x number +1 [level 1] + 7x number [Level 1] + 49x number [Level 1]*
3	4	5	6	0	1	2	6	0	1	2	3	4	5	4	5	6	0	1	2	3
0	1	2	3	4	5	6	2	3	4	5	6	0	1	0	1	2	3	4	5	6
4	5	6	0	1	2	3	5	6	0	1	2	3	4	3	4	5	6	0	1	2
1	2	3	4	5	6	0	1	2	3	4	5	6	0	6	0	1	2	3	4	5
5	6	0	1	2	3	4	4	5	6	0	1	2	3	2	3	4	5	6	0	1
2	3	4	5	6	0	1	0	1	2	3	4	5	6	5	6	0	1	2	3	4
6	0	1	2	3	4	5	3	4	5	6	0	1	2	1	2	3	4	5	6	0

*1x number +1 [level 2] + 7x number [Level 2] + 49x number [Level 2]*
5	6	0	1	2	3	4	1	2	3	4	5	6	0	2	3	4	5	6	0	1
2	3	4	5	6	0	1	4	5	6	0	1	2	3	5	6	0	1	2	3	4
6	0	1	2	3	4	5	0	1	2	3	4	5	6	1	2	3	4	5	6	0
3	4	5	6	0	1	2	3	4	5	6	0	1	2	4	5	6	0	1	2	3
0	1	2	3	4	5	6	6	0	1	2	3	4	5	0	1	2	3	4	5	6
4	5	6	0	1	2	3	2	3	4	5	6	0	1	3	4	5	6	0	1	2
1	2	3	4	5	6	0	5	6	0	1	2	3	4	6	0	1	2	3	4	5

*1x number +1 [level 3] + 7x number [Level 3] + 49x number [Level 3]*
0	1	2	3	4	5	6	3	4	5	6	0	1	2	0	1	2	3	4	5	6
4	5	6	0	1	2	3	6	0	1	2	3	4	5	3	4	5	6	0	1	2
1	2	3	4	5	6	0	2	3	4	5	6	0	1	6	0	1	2	3	4	5
5	6	0	1	2	3	4	5	6	0	1	2	3	4	2	3	4	5	6	0	1
2	3	4	5	6	0	1	1	2	3	4	5	6	0	5	6	0	1	2	3	4
6	0	1	2	3	4	5	4	5	6	0	1	2	3	1	2	3	4	5	6	0
3	4	5	6	0	1	2	0	1	2	3	4	5	6	4	5	6	0	1	2	3

*1x number +1 [level 4] + 7x number [Level 4] + 49x number [Level 4]*
2	3	4	5	6	0	1	5	6	0	1	2	3	4	5	6	0	1	2	3	4
6	0	1	2	3	4	5	1	2	3	4	5	6	0	1	2	3	4	5	6	0
3	4	5	6	0	1	2	4	5	6	0	1	2	3	4	5	6	0	1	2	3
0	1	2	3	4	5	6	0	1	2	3	4	5	6	0	1	2	3	4	5	6
4	5	6	0	1	2	3	3	4	5	6	0	1	2	3	4	5	6	0	1	2
1	2	3	4	5	6	0	6	0	1	2	3	4	5	6	0	1	2	3	4	5
5	6	0	1	2	3	4	2	3	4	5	6	0	1	2	3	4	5	6	0	1

*1x number +1 [level 5] + 7x number [Level 5] + 49x number [Level 5]*
4	5	6	0	1	2	3	0	1	2	3	4	5	6	3	4	5	6	0	1	2
1	2	3	4	5	6	0	3	4	5	6	0	1	2	6	0	1	2	3	4	5
5	6	0	1	2	3	4	6	0	1	2	3	4	5	2	3	4	5	6	0	1
2	3	4	5	6	0	1	2	3	4	5	6	0	1	5	6	0	1	2	3	4
6	0	1	2	3	4	5	5	6	0	1	2	3	4	1	2	3	4	5	6	0
3	4	5	6	0	1	2	1	2	3	4	5	6	0	4	5	6	0	1	2	3
0	1	2	3	4	5	6	4	5	6	0	1	2	3	0	1	2	3	4	5	6

*1x number +1 [level 6] + 7x number [Level 6] + 49x number [Level 6]*
6	0	1	2	3	4	5	2	3	4	5	6	0	1	1	2	3	4	5	6	0
3	4	5	6	0	1	2	5	6	0	1	2	3	4	4	5	6	0	1	2	3
0	1	2	3	4	5	6	1	2	3	4	5	6	0	0	1	2	3	4	5	6
4	5	6	0	1	2	3	4	5	6	0	1	2	3	3	4	5	6	0	1	2
1	2	3	4	5	6	0	0	1	2	3	4	5	6	6	0	1	2	3	4	5
5	6	0	1	2	3	4	3	4	5	6	0	1	2	2	3	4	5	6	0	1
2	3	4	5	6	0	1	6	0	1	2	3	4	5	5	6	0	1	2	3	4

*1x number +1 [level 7] + 7x number [Level 7] + 49x number [Level 7]*
1	2	3	4	5	6	0	4	5	6	0	1	2	3	6	0	1	2	3	4	5
5	6	0	1	2	3	4	0	1	2	3	4	5	6	2	3	4	5	6	0	1
2	3	4	5	6