@Casmat Is it something like this your aiming for?
I moved the ahdsr and the pma to a "midi chain", and I also placed a gain node with -100dB, because the midi chain leaked audio.
I also linked the attack, hold, decay and release to to match with the ahdsr outside the scriptnode fx
HiseSnippet 2830.3oc6bs7baabFeojVIKIam3535dqX7I4YRoI.o3iwSGS8LVSCkXMUcR6gpBArTDi.vxB.JI1NtSmbJ2x0lSsyzC8ROzq4V9CnGRm7GP64dp25Qm8A.wtfODDjsrTFxLSFic2uu8222teuVrPM8vFHeerGH2h62uKBj61vV8cC5rQGcKWvNaBx89vmir6pDfU1P22QO.rd+t599HSPtby9QzQkaw4.re+umsttstqAJtI.3kXKCzGa4XED2Zy5+LKa6s0MQ6a4HL5R02w.6tA1F2ifnYgE.c0MNV+Hzt5zgMCDja9sLsBvdsBzCP9fbysN1reqN3Sc4i+kV9VGZinOnBZQXDu4sw1lTDSaErQGKaylQRtO.jC1LVOLKWO7AvFVlVCZWTeP6PIlBQ8QtYjg2rRvSUDdEDf2HfTNAHMGGR2C1xvypaPbOT7rLbG2.jWachZWDJ7wBl4ygvMvjQ3Fj2Q+Xz1djGFPwJkKT3CUH+uG+zkVhn58CTNQ2SgS61eppxOUgscH+QnfsZ2FYDrxiZhs62sC10xHbbJjA9HBChoesmuYqWrk6IHabWjDSZfM6YqSzPq7H1fTFLJJGVZIKWaKWjR6dtFAVXWEr6ZAAj8.TQvCauhA1oK1kHLeHYhr6gd7R+9kVb.by6iBHi2y5vdAnUhalyiHRd5RKJCPYxRzWRZeEAlQJTh.sQDfHBDajO5wT1Eh2MzssOjz3JIjCprNrn9bxtzKmfR4P1DSYJGuPRG23DQA7OZAbSjgd+KmDxXQ1DwDjNdYjMvwIjhxvnkxV87CHdKlnb9jmrlooReheNECxvwNJ13iHVTcPdn74yOAvEx8wAO4Iez.7EHajtO5xsPDxjrsTLDwiWdCG53jWYYgvIA4bWb.ZO2UXxyRuZIkjc0t8H6KjW1HuQ1MMjk2jHbE2dNGh7D0lzAR7iKGb.N9fChwtL3pEgAhc2w0JXutH2wEQCDpKow1BQEYnArvH2MLLRKaKSjGvhDs3VPt2I.CwwwiUqCRA0yCoF9IoMDDmCsK.Y1SIH9a9aoZhWDFtaOay8hvvMOIH26uVG7K1YS8.cZb3PMIQ61E4EXQW3xsI5DRRM7nxKRj.+iCvcYp5vssjvxmux9LQ.2WLKnSsLC5D2vutdGj0QcDRfZm5NXSDU0yRfxQOlWe92V2O.0sk0uCIlYleu1ssHiBBUb7ANVll1nlXeK5V2Aiq9WP06oPFBWxOSDi2rjfnMdBhf60RQXgTr8Odh+imbwEhQCCv+4YoSSFaFInK+CWezkCmHMIE9nzPEyqmVLSXGTdHlLMMgYWBu6KhfjI6OW5R1ex0hjV3dOXSq.iNiFuyLB7R7k81FugkNcGHuTgXvNGb6Och0IMW5BEldn7.NTVF9I5mfXUev.xCXO2F64n7QHWjGUmpNgJZ+lzVQa2TWQ6dFADHrumtqeWrORUjyI5SSruMQA8bkGNuIoQQEusIhmv3tU8nF0DarotqDyHOKwoFVmI5KXKWcxBRKDQZL2y2fHrTcmn4Pyd19nOgZnqJRXbyZhM+bcOSx5hgzFzYeKrqH27usJt+J0d+x6d5MyYQ7dbLt.jkQenqnDkxKgsFXWL+3BDWpeAhTYvQGgj1AMRwHrt4ddmfj26SKCKYqgYVIj.KukOFQfl3.Youjjch4eFEZUBy7vbB4ItkAtAKtUlT6pSVsCS4Vi6DlPoBy0y06vV2MBq7Ujq2f817bDuInWeunbAuQnXuaTJi2DTsSLSqY+delVo8zouKjdvvQmODCLODNxyJdTGScteLbTmjhvgm.eC4VM9nQ.6hBNE6cLSfB+2jHabj2c.xOvmAwCZelJXMaa7owBU3Ti77YEcr.rPdx+Adtt+95V1bDvHgVHkU3tGhPyeDQV1bcQ1q4f6QKwBlaFBnH1wcQjbrbaQFAKyS5h3t7pi1V2fnC52TmVM08fziFhrxi7xaLXGv3fdrRmsoin4Zp6o6fBHnmKGz4HJSUXN9gn33vp9i9lWlk1OWWw.CjNaK.86ZSRDdr.i2s7jm1IZFgIZYHoDOKtXJMYOPXxhGR1lvYElvaA06X56UTd1deHJLKm7rtuXSDT3Tj3FQzmHtNlg6Ce2dNBKJujepT7sEfVmR8Bsut2Qn.lxQrgvCpxEwLf7keLTQtiIsX4tN5fAywNrCBgOOfIxO1QAXiNK5Tw1zhrvp2ecRQ3HtGAoVnRjqI5LpCoehJXKmCQlD+ILpoZBffXRbbN3IxV7FVtQBN0bBzP+rvmWDpUf7izVqAmGvGPFiZA9O0R0JnpVlX9eL5T9pV3.pUobE0xUUKWRa0hZEA702vjEWqW.1g3TIxwq.Xla7fABUIOKl9EOvqT2f2EBV3YyMAw5JCJQGx1kUEGeRWWGjp3C75M0VGdcLBCeUIdAOOdEKUw7dYXbMVRDeo477jRQCPIXZb5QCbQAD7lxc7H4J8NLG2jn74occwbXOhYK2sFoGu4g9mzVS1k2xvs8P+1djnq8YoCLFpJlIpplIppjIpJmIpVMSTodQoBRoZBDIEBX1KpoSTXKASPRbxQyk4IwfFCaVB1nmcfUW69i2y8j4TgPNAgqYNButBA7EsGlGdzPYxrLwfvCk+H47W3IkLAigYjliwpUEbOFUnxu7qEbQNn3kVxG19e4K+xu5Yh9EYs90G8OdP8HmAD7NDmASdpAfgl55eQ8TM0+l6u429LtGtVNXbPGK2iRN+kpCd6K52l3g0GEv4xP7RZk.LwD+tMbG+WR60PePBDjMyBaWtKrMkYZGbnMljxhz1lejPBvRiJa4.mSxqsc21fyoniKet8g9nSDcnskMU4km5E4hMGIxUcaNih+mWrrSmezwKmmjSw3RxHQVDZZ0pUnzpk0zJVpZkpqFFeN1W3DxiPXFuOgUECSXQslVgZZ0Dl96CqkuZM5uxpUWsXAsJEGFHkKUQsRU0JEKTdU0pkY.YV3OOU99VfnqpJIwyCYMLrafrjnQBnVrfZApvVqV0R0pTPELFK9eHkaEpw+UoR4RU0VspV5m6RiMIG1A69lMyoEg7WihYRE9vQIlma16iaGbvgrc+pxFHOTrH63Qct04e9lOR9plYnhTGrDvN6tPAYNxl+AxQJ7qMRW.Em5B3bbAP2pUbpQ+2WM5g7hBEMmyfM+0E66YkxjfZCO07dZD9oF6fjw8TmZXL0vXpgAPthWg.bZ2jCCNWRy8UmZtO0bep49vwAKO0vXpgwTCigMLpL0vXpgwTCigMLpN0vXpgwTCijurwT9PFdmju8Xv3uRXgWGuMH62a2F7lwXZvqq8U+4O6qP+++T8Le+43u2eoW2rz0K6p3VIMvZVsX47UnzpUnX4ZUqVIk2KvAW1QIQafLLjzEdGytBkM9DbYjlPLOjrDcI0tBElEm60u9z+0+7u+Y0uLBTDvkb8Jec4NO+MCvyux7o+68Z7ee1kAOwS6P533qL2Up4fl5p0xSosnlJYDEtblCwBAHo2oePnOZEUMEy0eB1H.jdW8r6PdxqOR5.ZhWPrDbWBNHAnwiWsRWo3U9cacwgaopu6TuZS.uYHP35X7wN5ru9fL8Wafz+gC1v5LkaLeWyODtmuglB6StQ4c+2byKv8BHIN1POvi8wluaOmVjRHLh91M7ite9gOWHp3hVHWS1Cul7KrSU5y4B6TMpyqj4vQ2vCeP3EtkcaYYsPjaW1eZsVD1f9rhZzeKL3VUzOnhCLLBq4ALZZzx.MEy.Mkx.MqlAZJmAZpjAZpNQZneHxgk3Q2+SZn4V7hMyEUO.wT.7cykbDE.