for first use this block, and connect it before buy/sell block, or somewhere on top of blocks ..
0_1491589088546_upload-3aa7d934-c65c-4013-98db-559f56a85f2c
and second you can use something like this:
0_1491589186222_upload-725617a0-3065-4253-9d8d-854c1fa40242
or instead of Indicator moves within limits you can use two condition blocks in this connection:
0_1491589308272_upload-ae00a5ae-cae4-4159-b442-a0103cdf8454