Hello all. I found a way to have unlimited movement in a single unit (preferrably a scout) to explore fast 
You will need Cheat engine to do so...
Once in game, select the unit you want unlimited movement and see how many moves it has. Every move is 256 value. For example you have a scout and he is 3/3 movement.
Do a first scan (4 bytes / uncheck fast scan) and search for 768 (3 moves x 256). Then move him 1 terain. Now it has 2/3 movement. Now do a second scan and put 512 (2 movements x 256). If you moved him on a hill and have left with 1 movement then search for 256 instead of 512...
3/3 = 768
2/3 = 512
1/3 = 256
0/3 = 0
You can end turn and continue searching with this way until you find 4-6 results. Now select all of these to move them down and activate them (check box on the left). Change value on all of these to 768 (3 moves).
Now you have unlimited move on that Unit! But you need to spend your 3 moves and then it refreshes again, you can set it to go far away in 1 click nor to put him on auto-explore.

You will need Cheat engine to do so...
Once in game, select the unit you want unlimited movement and see how many moves it has. Every move is 256 value. For example you have a scout and he is 3/3 movement.
Do a first scan (4 bytes / uncheck fast scan) and search for 768 (3 moves x 256). Then move him 1 terain. Now it has 2/3 movement. Now do a second scan and put 512 (2 movements x 256). If you moved him on a hill and have left with 1 movement then search for 256 instead of 512...
3/3 = 768
2/3 = 512
1/3 = 256
0/3 = 0
You can end turn and continue searching with this way until you find 4-6 results. Now select all of these to move them down and activate them (check box on the left). Change value on all of these to 768 (3 moves).
Now you have unlimited move on that Unit! But you need to spend your 3 moves and then it refreshes again, you can set it to go far away in 1 click nor to put him on auto-explore.