Defining a hardcoded matlab code dynamically? How can i do this in order of my code?

Is there the possibility to create my diagram options(i), diagramlimits(i) and inputdata(i) dynamically with a for loop - or with another way -> i=3? I don't want to write it hard coded like in my code at the moment.

At the moment a big part of my code is repeating. Only the variable names are changing. I will avoid this. I will replace it with variables based with an index??? My Code:

clear all %löscht alle Variablen 
clear clc %löscht den Bildschirm

diagramoptions = [];
diagramlimits = [];
inputdata = [];

diagramoptions2 = [];
diagramlimits2 = [];
inputdata2 = [];

diagramoptions3 = [];
diagramlimits3 = [];
inputdata3 = [];

wholecontent = fileread('Rainflow_Data_Limits_Settingsx.txt')
sections = regexp(wholecontent, '\*+([^*]+)\*+([^*]+)', 'tokens')

for section = sections
   switch(strtrim(section{1}{1}))

         case 'Diagram Options' %Diagram Options -> siehe meine Gliederung im .txt file
            keyvalues = regexp(section{1}{2}, '([^\n\r=]+)=([^\n\r=]+)', 'tokens')%\n -> new line; \r carriage return
            diagramoptions = cell2table(vertcat(keyvalues{:}), 'VariableNames', {'Key', 'Value'})

         case 'Diagram Limits'
            header = strsplit(regexp(section{1}{2}, '[^\n\r]*', 'match', 'once'))
            content = textscan(section{1}{2}, repmat('%f', 1, numel(header)), 'HeaderLines', 2)
            diagramlimits = table(content{:}, 'VariableNames', header)

         case 'Input Data'
            inputdata = cell2mat(textscan(section{1}{2}, '%f%f%f', 'HeaderLines', 1))%dh: ich habe 1 Headerline zur besseren übersicht

         case 'Diagram Options2' %Diagram Options -> siehe meine Gliederung im .txt file
            keyvalues2 = regexp(section{1}{2}, '([^\n\r=]+)=([^\n\r=]+)', 'tokens')%\n -> new line; \r carriage return
            diagramoptions2 = cell2table(vertcat(keyvalues{:}), 'VariableNames', {'Key', 'Value'})

         case 'Diagram Limits2'
            header2 = strsplit(regexp(section{1}{2}, '[^\n\r]*', 'match', 'once'))
            content2 = textscan(section{1}{2}, repmat('%f', 1, numel(header2)), 'HeaderLines', 2)
            diagramlimits2 = table(content2{:}, 'VariableNames', header2)    

         case 'Input Data2'
            inputdata2 = cell2mat(textscan(section{1}{2}, '%f%f%f', 'HeaderLines', 1))%dh: ich habe 1 Headerline zur besseren übersicht

          case 'Diagram Options3' %Diagram Options -> siehe meine Gliederung im .txt file
            keyvalues3 = regexp(section{1}{2}, '([^\n\r=]+)=([^\n\r=]+)', 'tokens')%\n -> new line; \r carriage return
            diagramoptions3 = cell2table(vertcat(keyvalues{:}), 'VariableNames', {'Key', 'Value'})

         case 'Diagram Limits3'
            header3 = strsplit(regexp(section{1}{2}, '[^\n\r]*', 'match', 'once'))
            content3 = textscan(section{1}{2}, repmat('%f', 1, numel(header3)), 'HeaderLines', 2)
            diagramlimits3 = table(content3{:}, 'VariableNames', header3)

         case 'Input Data3'
            inputdata3 = cell2mat(textscan(section{1}{2}, '%f%f%f', 'HeaderLines', 1))%dh: ich habe 1 Headerline zur besseren übersicht

        otherwise
            warning('Unknown section: %s', section{1}{1})
     end
  end

%öffnet die output fenster
openvar diagramoptions
openvar diagramlimits 
openvar inputdata 

openvar diagramoptions2
openvar diagramlimits2
openvar inputdata2 

openvar diagramoptions3
openvar diagramlimits3 
openvar inputdata3

For your interest -> things i have tried With no success. For example:

for i = 1:count

str = num2str(i); 
eval(['diagramoptions' num2str(i) '=dataset;']);
eval(['diagramlimits' num2str(i) '=dataset;']);
eval(['inputdata' num2str(i) '=dataset;']);

eval(['header' num2str(i) '=dataset;']);
eval(['keyvalues' num2str(i) '=dataset;']);
eval(['content' num2str(i) '=dataset;']);

end

zzz=3
for k = 1:1:3 
    assignin ('base',['variable_' num2str(k)], zzz); 
end 
%%%%%%%Then i tried to replace the old variable name with the new one with an index -> error

Thank you in advance