2104 and 2103.5
sell limit to close 2103.5 entry ......... at 2103.25
flat on 2103.5 .........
rollover on 2104 ..... at 2096.75
.....basis is now 2096 on remaining contract ... ESM5
( 2104 basis ... ESH5 )
...basis is now 2096 on remaining contract(s) ... ESM5
one position 2095.75 and one at 2096
sell limit to close 2085.5 entry .... 94.75
....
edit ... 94.25
buy limit .... one entry
2095.5
-----------------------
and buy limit one entry .... 2085.5