server.R tab3 and tab4 functionallity
server.R tab3 and tab4 functionallity

LanceFiondella/srt.core,LanceFiondella/srt.core,arhik/srt.core,LanceFiondella/srt.core,LanceFiondella/srt.core,arhik/srt.core,arhik/srt.core,arhik/srt.core,LanceFiondella/srt.core,LanceFiondella/srt.core