@ulrik
Here is my test file.
This is for a drum machine
When you press the play button, the arp is started.
If you change the preset now the arp stops.
Although the state of the play button is saved.
The aim is to keep the arp running - even if the preset is changed.
HiseSnippet 2155.3oc4Xs0aijTEt5jTiV6Y7bWBj3klHDxQDeKIaxLLBs9Rb1IjjIFaOAPHjUmtKaWJsqp2tKmDuCQh8Adm+J7Of24E9cvS6a73voptsc0N1gdMYVgfVJW5SctWmpNemtgO2lDDv8QFoZOxifLdDt0Hlnes9VTF5v8QFowsq2psYklMPUG4YEDPbPFFq9kx0MRsFR87seQUKWKlMYJID5LN0lbLc.ULkZixGQccOvxgzlNPi6cJenMmUi6xGB9xp3hHOK6Kr5QdmkjsUvHiGT2gJ39sDVBR.xXspbmQs5yuhEx+Yz.54tD4KkPs.EER9.tqizikTQ05SccZLNlCPHCbioYfUCy.uDeB0gNg9zLwSUKXNUB87gwJ2k6UR28Jlb2yPy8VKz8dFtksO0SLcEou8P7gLAwuqErEn6Vg7hVgtFtFG3fIxOv5BxA9vKSjH6tEKto4dEKtwaRmtPAQeZf4UVAlc84CL225RpStj7jNsOomoqUf3HxHyegYtW+ZPeTlKkQL6NjYKnblImUcnPvYkj9iO2MqMefGmAd1llWZ4NjrQ5OjNEsqY1wZ5GqT0F.0TfLAbWRdOeJSjc8eKenokOwrOjEordlNP51bcyelYcVOvn46QDxsr2wEp5nwZbiMdSJPYjKAidnC3opR97dtVijrNlsMMKISIRVuI8MuI83DHn0Zi84rqGEMquQ9.IcULUyx08bn9M6rAKjfKTHVNCp5CDPf6aVw2izqG0BJhJMwmhhfIa1YWWms0kaXw1xFLxrADF4BMady1xEjAlYssMg84M.l0XH283iZ2eZNUs6OM5NWvj1EVX9own0kQzsqXhV7tpXLgGYQSDA4qPAi7OKbad2hi2gkroD4lzoHtADcwCEhABbZ2tUGUOTaYizZbgWXQxjna9EIwiOHEnE6RW8TVV0ohomsNApFfaGklQUcObv4D+rfj2j1bVg61MT5YVKxZtR4lyxx6m8uKAyxTFU+TqjQ3hp32DhW7Mg5WTaGl3zXjyNjQEm5QXK59QTT1FtobkHuBXUntm7wQ2SFVninv0govQmFQJWVuWEJQhGsOMGwe+g6aIrj2XG4Rfa5Q7ETYFvXexkPqvv6uSg2mDbgf6AlZREBbAtHp4SnYOvkaIfqzZSgLkz3OAqSpD5Z8dmil9R8xQNPn0dBzfi.0bU84WEP7Qm2abO1TO.39eJEgJHClR8u7w+7GiScKI4+1e8iJxpvbkbF3OjAJ5WWtc0x5RRXZZ8etoveHYyIKU+ZOKV.T1DTI.T1vARV5ZAGwlxipEn+BTfr.N31pEJvBE31qcf0kbev4k3IhsHbFIzEjxrcHsPB+ZpineSH4xgU9cYTGlKle6Yd1767BR5+9LouAckz.S1i5+Mk6Sn85OEVTiQkQZ0BqkfJXs8+ZZ6++8+PLM8nPMkYLlAKFwUonGgkExcBInoqekltx9Mki63+wyl0wK+9xBx0hwUOOBuyVuZ281Y6R6UDcN2G1WaQ+5XmTBo1zxgNLPmtdQn75fXkeRBSqbkuIOmMIJSkfirWqarQ5uDOFgH51wXWp6f.An6CG.W5hLLwenQyS+k0q0tyAmd790adCXlNxFKc1JuGqGZgIEO.tBSnuCouQftMbO.zI2YnqrcuNRTI76nEfSWwf7Ig0Am4Dizgm+IAdZRc2mgaPE18mu+txb7W484eh82Hv9Yv061kXKl5rqgO327oGYutq7hwtRkgNT9wbYiCkq7xPJlRRJXcD+R2GCg4k3gv.vO1v1FQ2Hp8x19.xEnYj9BR2rNyBxEN5dPSNWgQQeHvVVC7bIPF0W.pOF2.vJ+f3Z3.niW3bf+Ibg2CswBJLvx1A3zk6UHpcZgi3rKUcb8EE1Zq7E+byKd6WalyryqLqREv+bBmwKr8tcpMBfsbD09hNEK0YuWsSt2w8GX4BWTkqEQAxI2BkO+UVWhFHy5XCoqMv5Z4+lpEB4BguJhFulqJe3LdciUSbcz7Gfs37lPbsOUCvtZxbu43RqjzgVeQD0odTo4M7pw+.aNG.wYRCPPRolTbAngkSNBi7jIDH+Xln8XbehBGeVI5fHH7Pe5Lo+uNvyoue.OWDMNuMEN8j.TmoowkNUU3LG1lR5tvluTfim6c0Zy9pJfdrNk30NydZaoKm0lw3EIXHgGiC8hHRK0fFYvMUX1+tphVtT.aUz3BvgfVBhWDsYTxSKmDk7PrTCJeY47hmpTPqKnKvM91uHIoCPKbe4buA+mjQffwiPbNhwOeVE7Suc13oQJ.PpcNuJ+ZkJdNtE4qFRfNrSHm7.RyUxfO0V.CM0zhAnIWpnIEtU+gc65RVtJrGhCaT2lRtqPHZPjmGy9MfN+Jk.ypRFPaC.Y0VXFs8YkcjG8M9Q3R6lW8TC940xes8P3WGWoBJ416LnguMfTL41a67Uxmu6a2Oe9FeUC3cupI2dOGeLg0SzewVCghasSpBVK+WBVK+YRqUOl0tqRqmgg1zLXFfVDW.CBOIGUlqh9A3SGJ7FJtmT2yvmzntBUSjBuUJHgmcdhTQ.ZnEnlhkSRY6CvuEPCMmR9u2laZ0jA9+eymxO0XerEUhCtNSgjkn7wmCs.6ZMzULlZ79ZRPnd84LpcbTyvzo85Q70884FPUDBYg7DJurbSnDwJPKe9SJeLkQr7mE3+8GBQiDte8CwgtqoD.h4+aLu6p++47tM4Cke7xSrfBU4HSR3IvXlPqzvKDjenXiUjcuBeu33onZQXNpW9H7DsXI46FQKVZ7heuXCXvSedG6v6pj0xelhBD2L0DpovmHe2bx2XFiKluHLxnCsissLcmqDBMeY1ZIjY6kPlcVBY97kPlcWBY1aIj4U2oLxYdqLTvGDdTDHzntZdDCiIesBiUQ+K.GfnWTC