Garment drying symbols

General query not related to any specific model but about the drying symbols on garments. Cotton garments have either one or two dots on the label. Can I still use the cotton drying cycle for those with one dot or is this too rigorous and/or too hot for those garments? Same applies to synthetic items. Some have one dot and some have two. Is the synthetic cycle too hot and /or too rigorous for those with one dot and if so what cycle would be appropriated? If so what cycle would be recommended instead?Mixed cycle – does this mean for an item of mixed fibres or a whole load containing a mixture of cotton and synthetics? Bed linen cycle – how does the machine know what fibre/temperature to dry it on so as not to damage the item as bed linen can be made of different fabrics and require different settings. For info I have an AEG Lavatherm 6000 series. Thanks in advance. Elaine